With Koe being a japanese style RPG, the player will be able to meet up with several characters in the game. This includes party companions as well is NPCs that are important to the progress of the player.
Avatars
another other way the characters you level up are used are through something called avatars, which are monsters you can capture and fight alongside. For example, if you capture a cat (neko/ねこ) then you need to level up ne and ko to level up your avatar!
