How to get Gomamon in Digimon Survive?

Unlike most other wild Digimon, you don’t recruit Gomamon by bargaining with him during battle. Instead you have to advance to a certain point in the story, after which you can find and help Gomamon to add them to your list. However, you will interact with Gomamon (another Gomamon) a few times before you can befriend him. So don’t be surprised if you can’t add one to your collection right away.
Gomamon is a rookie defense Digimon that excels for its resilience, as well as its solid Marching Fishes special attack, which deals water damage at medium range. However, it may be more useful in the long run as there are multiple evolution lines that include more powerful champion Digimon like the water specialist Ikkakumon.

Related: Any Digimon included in Digimon Survive
How to recruit Gomamon
You encounter this recruitable Gomamon in part 3 of the story after fighting Fangmon on the dam. Shortly after this fight you will enter a free choice area of the game with some options for places to spend your time. During this time you must go to the forest outside of the school where you will encounter Kunemon. After learning how to decode Kunemon’s moves, they will guide you to a new area called Spider Lily Forest where you can find Agumon, Falcomon, and Labramon.
Here you will notice a mysterious rustling coming from a patch of tall grass. The Digimon in your party will warn you to search the area carefully, but Labromon seems to think the source of the noise isn’t dangerous. Upon examining the patch of grass, you’ll find an injured Gomamon that’s probably hiding from you. At this point, you’re working to heal the Gomamon’s wounds. This wins the Gomamon over and puts them on your list for good.
https://www.gamepur.com/guides/how-to-get-gomamon-in-digimon-survive How to get Gomamon in Digimon Survive?