Side Cases are optional missions that you can complete for extra insight into the world, more friend opportunities and some great rewards. It’s also a really good source of Yen, if you find yourself running out. Most of the Side Cases are optional, bar a few, and can be found after reaching certain parts of the story and in some cases, reaching a certain level of City Reputation.
There are four main methods of discovering Side Cases. You will find them at Yagami’s Detective Agency, the Genda Law Office, and Bar Tender. Finally, some of the Side Cases are scattered throughout the city itself.
Kamurocho Side Case Guide
Number | Side Case | Requirements | Rewards |
1 | The Bird Takes Flight | Chapter 2 Story Event | N/A |
2 | The Mad Bomber Strikes | Chapter 2 Near Ebisu | N/A |
3 | Amidst A Dream | Start Of Chapter 3 | Yen |
4 | Gone With The Breeze | Start Of Chapter 3 | Yen |
5 | A VR Pair Of Dice | Chapter 3 Story Event | Unlock VR |
6 | Entrapment | Chapter 4 start. Champion District | Yen |
7 | The Mad Bomber Strikes Again | Chapter 4 start, near Theater Square | Yen |
8 | Justice Is Sweet | Chapter 4 story event | 50,000 Yen |
9 | Master And Pupil | Chapter 4 Story event | Yen |
10 | The Missing Diamond | This Side Case unlocks during another side case, Sashimi Of The Fallen. | 20,000 Yen |
11 | The Socialites Secret | Chapter 4 story event | 90,000 Yen |
12 | The Black Calamity | Start of Chapter 5, Senryo Avenue. | 15,000 Yen |
13 | Gone With The Gust | Start of Chapter 5 on Park Blvd. | 50,000 Yen |
14 | Return Of The Mad Bomber | Start of Chapter 6 | Yen |
15 | Partners | Chapter 6 story event | Yen |
16 | Smart Watching | Start of Chapter 7. Near East Showa St | Yen |
17 | Gone With The Gale | Start of Chapter 7, must have completed Gone With The Gust | Yen |
18 | The Black And White Calamity | Start of Chapter 7, must have completed The Black Calamity | 15,000 Yen |
19 | Captain Cop | Chapter 7 Story Event | Yen |
20 | The Pervert King | Start of Chapter 8 in Tenkaichi Alley. Must have completed The Twisted Trio Panty Professor | 50,000 Yen, 200 SP |
21 | Burger Fugitive | Start of Chapter 8, Taihei Blvd | 1,200,000 Yen, 100 SP |
22 | Worst Birthday Ever | Start of Chapter 8, Kanrai | 80,000 Yen |
23 | The Fire Calamity | Start of Chapter 9 on Senryo Ave. Must have completed The Black And White Calamity | 15,000 Yen |
24 | Gone In 20 Minutes | During Chapter 10, before you enter the white van with Jester, at the Yagami Detective Agency. Must have completed Gone With The Gale and The Ghost Tenant. | 80,000 |
25 | The Ono Michio Bandit | Chapter 11, at Theater Square | 120,000 Yen, 120 SP |
26 | Love And Madness | Chapter 12, toward th end. Enter Bar Tender and you'll find a woman talking to the barkeep. | Yen |
You can’t miss this Side Case, it’s party of the main events in Chapter 2. Once you are at the Drone Registration area, participate and win in a race.
Outside Ebisu Pawn in Chapter 2. You need to find the final bomb. Go to the Champion District and stand outside Earth Angel.
Chapter 3, at the beginning. Speak with the musician and buy her CD. After some time passes speak to her again in Bar Tender then back again to Theater Square, then back to the bar. Eventually you will be tasked with
eavesdropping on Saito. Before you enter the cafe you need to put your Dirty Clothes disguise on. After you eaves drop and try to speak with the singer, you’ll need to check your evidence folder to find the office. It’s on X. You’ll find her fans all standing around a doorway.
Simple mission. Chase scene.
This is part of the story during Chapter 3, you can’t miss it.
At the beginning of Chapter 4 in the Champion District. Doesn’t matter what you choose, you have to pay. You need to find a few clues first. Check the ash tray, the bathroom door, the receipt, her ring finger, her necklace and her face. Then you need to trail her.
At the start of Chapter 4 near Theater Square. The bomb can be found at the Akaushimaru in the Hotel District.
Start of Chapter 4, part of the story. It’s a simple investigate mission.
Start of Chapter 4, part of the story. It’s considered a main story event so the game walks you through all of the objectives.
You get a call during Sashimi Of The Fallen Side Case that unlocks this Side Case. Head to Ebisu Pawn then go to Sushi Gin. Head to Theater Square, finish the chase scene. Case closed.
During Chapter 4, after Jester reveals his identity, you will get a call on the way back to the office from the barkeep at Bar Tender. Head there. The choice doesn’t matter, it’s wrong whatever you choose. After you tail her, you need to put on a disguise.
At the start of Chapter 5. Speak with the Fortune Teller and then tail the man. When you get a choice of where to look, choose the Champion District.
Must have completed Gone With The Breeze Side Case. Another chase scene, chasing a wig.
Must have completed The Mad Bomber Strikes Again. Start of Chapter 6. Head to Poppo on Showa Street to find the bomb, it’s inside the store.
Chapter 6 story event, you can’t miss it. Check the business card in your Side Case files then head to Tenkaichi Alley to find the commotion. Then head to Bar Tender to get the intel. When you have to eavesdrop in the restaurant, put on a disguise first. Rest of the mission is simple stuff.
Head to the location at the start of Chapter 7. You’ll see a man harassing a woman. Intervene. After a while the marker will be on the map to continue the Side Case. Nanami has been kidnapped. After the conversation to find the clues, head to your office, the Detective Agency, you’ll find the van right nearby.
Chapter 7, must have completed Gone With The Gust. Tail the Yakuza, for way too long, then chase down the wig again.
Chapter 7, must have completed The Black Calamity. After you get the Side Case head to Tenkaichi Street. From there it’s a simple but long trail scene.
Chapter 7 story event. During the first investigation scene, look for a packet of pocket tissues under the yellow crates. Buy the Bento from the store and give it to the kid then head to Turtle Financing (Break Room) and speak with the people there to find the location of the office. From there it’s a simple mission.
Start of Chapter 8, speak with Yosuke in Tenkaichi Alley. Must have completed The Twisted Trio Panty Professor. Head to the Hotel District. There’s a long tailing scene, a brief chase, a fight and arguably one of the greatest one liners I’ve seen in years.
Start of Chapter 8, Tahei Blvd. This is a fight against a very strong opponent. Bring a lot of healing items and any strong Extracts you have. Head to Public Park Three and jump the fence. In the Cafe Alps Alley there is a man on the floor near a burning barrel. Speak with him and fight the fugitive.
Start of Chapter 8, Kanrai. The man gives you a cheat sheet to ensure you get the details right. He is 34 years old, his wife is 33 years old. They met in Yakiniku store. Mum is a nurse, sister is in England, the father died. No sake for Naoko. Choose the following conversation options:
The Captain
She’s got the wrong guy
Then choose the piece of paper
Start of Chapter 9 on Senryo Ave. Must have completed The Black And White Calamity. Head down to Showa Street and find Hiyama. Another needlessly lengthy tailing scene follows.
During Chapter 10, before you enter the white van with Jester, at the Yagami Detective Agency. Must have completed Gone With The Gale and The Ghost Tenant. After you get the case, head to Theater Square and pick up the phone before heading to Park Boulevard. Chase down the wig, again.
Chapter 11 at Theater Square. After you meet the mascot at Theater Square, wait some time, he will then appear on Park Boulevard. When you get into Charles, find all the clues and the costume. The piece missing with the costume is the shoes, white pants, and white gloves. After you have all the clues, accuse Kaneda, the man with the cardigan and yellow sandals. When you need to provide evidence, choose the Sandals and the Dirty Sneakers. Finally, choose the Debt Collector.
During Chapter 12 head to Bar Tender and you’ll hear of a woman being scammed. After that, wait some time. During Chapter 12, towards the end, at your office. Tomioka will be standing outside your door and tell you a man is on the roof threatening suicide. When you get to the roof ask him his name, then ask why. Tail the couple, grab the shot and return. Tell him the truth and then answer the phone.
Yagami’s Detective Agency Side Case Guide
Side Case | Requirements | Rewards |
The Twisted Trio Panty Professor | Chapter 2 | 50,000 Yen |
The Mystery Writers Stratagem | Chapter 2 | 180,000 Yen |
Queen Of Hearts | Chapter 2 | 100,000 Yen |
Tiger Jacket | Chapter 2 | 50,000 Yen |
The Mystery Writers Gambit | Chapter 2. Mystery Writers Stratagem. | 210,000 Yen |
The Twisted Trio: Twisted Groper | Chapter 2. The Twisted Trio Panty Professor. | 50,000 Yen |
The Twisted Trio: Twisted Judge | Chapter 3, towards the end | 50,000 Yen |
The Mystery Writers Master Stroke | Chapter 6, 30 Reputation | 380,000 Yen, 100 SP |
Dangerous Hide-And-Seek | Chapter 6, 30 Reputation | 80,000 Yen |
Perilous Hide And Seek | Chapter 7, must have completed Dangerous Hide-And-Seek. 35+ Reputation | 100,000 Yen |
???? | Complete all cases. Defeat Keihin Leaders. Reputation level 50. | ???? |
Treacherous Hide-And-Seek | Cleared Perilous Hide And Seek. Reputation level 45+ | 120,000 Yen |
???? | Clear 49 Side Cases. Reputation 50. | ???? |
Head to the stairs at the bottom of M Cafe and speak with the twins. Head to Le Marche in the South East and buy some panties. Head to the office and put the panties on the roof. Once the drone arrives, head to the roof of the Batting Cages.
Speak with the client in M Side Cafe. You then need to speak with Tsukumo to track the cell phone. Then head to Poppo on Showa street. Return to Tsukumo then to Poppo on Shichifuku Street. Return to the client, then back to the store. Easy mission.
After you meet the client you will be tasked with solving a riddle. It may be different each play through but below was my puzzle:

Working out this puzzle is simple, but you may need a pen and paper if your puzzle is different.
- CBDA – 4
- CCCA – 1
- BACC – 3
- AABC – 4

Must have completed The Mystery Writers Stratagem. This is another mini puzzle to solve to get the combination to the safe. It’s simple once you figure it out. It’s the number of digits in the multiplication puzzles given.
- 111×3 = 3
- 12×99 = 4
- 333×0 = 1
- 5×6 = 2
You must complete The Mystery Writers Stratagem first. This is a very straight forward case. Simple objectives, a brief chase and a fight.
Speak to the client at Wild Jackson on Tenkaichi Street. Head to the park and speak with the man on the bench. They will ask you to fetch two Bentos. If you have completed Goro Moroboshi friend event, you will not have to get the items. Head to the Batting Center to find the thieves. Follow the next objectives on the map until you need to get a jacket for the homeless guy. Go to Don Quijote on Showa Street and buy the Warm Clothes for 5,000 Yen.
Available after you complete Ass Catchem and complete the Chapter 3 side case to find the cat (It’s story based, you cannot miss it). Head to the objective marker, you’ll see a man hanging off the side of the building.

Must have completed The Mystery Writers Gambit. I got this one during Chapter 6 with 30 Reputation. This is another puzzle game for the publishing company.
- 5+3=8
- 7-10 =9
- 3+11=2
- 0-7=5
Everything adds up until you hit the 1+11=0 sum. That’s because it’s working on a 12 number system, a clock. Using a 12 hour clock, complete the sums. Answer is 8925.

This was available in Chapter 6 with 30 Reputation. The man asks you to find his son who is playing hide-and-seek. You can find him in the Empty Lot.
Requires 35+ Reputation, must have completed Dangerous Hide-And-Seek. This time the boy is hiding in Hills Garden. Check the huge crane.

Chapter 12, 45+ reputation. Must have completed Perilous Hide And Seek. Head to Cafe Mijore and speak with the client. Go here, there’s a small door. Interact with that to find the child.
Genda Law Office Side Case Guide
Side Case | Requirements | Rewards |
The Darkest Place | Chapter 2 Story Event | 80,000 Yen |
The Ghost Tenant | Chapter 2 | 80,000 Yen |
The Devil Wife | Toward end of Chapter 3 | 80,000 Yen |
Reckless Aspirations | Reputation 30+ | 120,000 Yen, 100 SP |
Way Of The Detective | Reputation 40+. Near end of Chapter 12 | 80,000 Yen, 150 SP |
This is a simple case, following basic objectives. There are photography abilities that will make getting the perfect shot at the end easier. You need to make sure you fill all objectives of the photo or the mission fails. The upgrades slow down time and make it much easier.
You can pick this up from the Genda Law Office during Chapter 2. You need to speak with the client at night. You will sleep at his apartment for the evening. There’s a short investigation scene and then a chase.
Head to Cafe Alps and speak with the client. It’s a simple mission, basic objectives and a long tailing scene.
You need 30+ Reputation for this Side Case. Head to M Side Cafe and speak with the client. Wait for the call and then head to Pink Street. There’s a long tailing scene and a fight.
Reputation 40+. Near end of Chapter 12. Get the case from Genda Law Office then return to your office to speak with the client. Head to the objective marker for another trailing mission. After the tail there’s a brief fight.
Bar Tender Side Case Guide
Side Case | Requirements | Rewards |
Underneath The Mask | Chapter 3 Story Event | 50,000 Yen, 100 SP |
Interview With A Detective | Chapter 3, complete Underneath the mask | 140,000 Yen, 100 SP |
Honey Trap | Chapter 3, complete Underneath the mask | 150,000 Yen, 100 SP |
Secret Of Cats | Chapter 3, complete Underneath the mask | 400,000 Yen, 100 SP |
Under The Table Politics | Befriend Hiranuma (Complete Honey Trap too), Reputation 35+ | 150,000 Yen, 100 SP |
Morale And Morals | Reputation 45+ | 80,000 Yen, 150 SP |
Sashimi Of The Fallen | Chapter 3 onward. Reputation 25+ | 80,000 Yen, 100 SP |
This Side Case is required to progress through the story in Chapter 3, you cannot miss it. Head to the alley and climb the ladder. Then head to Kamuro Theater and use the elevator to reach the roof.
It must be day time to start this Side Case. Head to Hotel Deborah and take the elevator up to the 6th floor. Simply head to the objective, wait for the concert and then wear the costume. I chose the following answers. I was practicing evil deeds, I’ll apologize. When you need to escape the media, simply change your disguise outfit.
After you get the Side Case head to your office and stand in the “wait” area. After speaking with the journalist in Bantam you need to head to the Wette Kitchen on the West side of town on Theater Alley. Head into Wette Kitchen and go upstairs. Doesn’t matter what option you choose, chase or not.
Head to Modern Mahjong on Senryo Avenue. There;s a staircase near the Mahjong place, follow it right up to the roof. After speaking with the client, go back downstairs and speak with the guy that owns the kitten cafe, it’s on the next floor down. He will tell you that he saw the cat on Taihei Boulevard. From there simply follow the cat into the tower, use the drone to get its’ attention once you complete the investigation scene. Eventually you have a choice to cooperate with the man in black or not, your choice doesn’t matter, you cannot cooperate.
Available from Chapter 3 onward, if you have 25 reputation. Head to the Koi Bride shop and speak with the client. After the investigation you need to speak with a chef for more details. First, go to Sushi Zanmai on Taihei Blvd and then Sushi Gin on W Showa St. You’ll get about another client, head there and speak with her to get The Missing Diamond Side Case. Head to Ebisu Pawn then back to Sushi Gin then finally, head to Theater Square.
Befriend Hiranuma (Complete Honey Trap too), Reputation 35+. Head to the Beef Bowl and speak with the client. Rest of the mission is simple, snag a photograph, beat up some goons, jobs a good’un.
Chapter 12, 45+ reputation. Head to Cafe Mijore and speak with the client. Head to the objective marker, go inside and head up to the top floor. Go to Don Quijote to buy the Janitor Uniform then return. Snap some photos, job done.