POKÉMON MYSTERY DUNGEON: TEAM GO-GETTERS OUT OF THE GATE!

A human wakes up one day to discover that he has become a Squirtle in a world filled with natural disasters, where he meets Charmander and Chikorita of Team Go-Getters, a Pokemon rescue team. Squirtle joins Team Go-Getters for the task of saving Pichu's Brother Pikachu from Skarmory, however Gengar and his Team Meanies decide to interfere. (Source: Anime News Network) — Description from AniList community (anilist.co).