Materials in Digimon World: Next Order are used to upgrade buildings in your town. Some are easy to find, while others are hidden very well or protected by strong Digimon. Check out this Digimon World: Next Order Material Location Guide to find everything you need.
Digimon World Next Order Material Location Guide
This spot is a pretty good early Acid spot.
This is being updated as we find new materials, check back soon for updates.