Koumori is one of Ayden's Pokémon and the mate of Ingrid's Kokoro.
Rock Tunnel, Kanto
Koumori is one of Ayden's Pokémon currently residing at Ayden's home in Phenac City. He was encountered in the Rock Tunnel during Ayden's time in the Kanto region. At some point he evolved into a Golbat and again into a Crobat. He is also the mate of Ingrid's Swoobat, Kokoro.
When Koumori evolved into a Crobat, he gained immense speed and maneuverability in his flying ability. He specializes in speed and physical attacks and dealing damage quickly, often leaving them in a daze, usually as a result of Hypnosis or Confuse Ray.
Koumori was born in the Rock Tunnel between Cerulean City and Lavender Town to a colony of Zubats. However, he was a runt and often slowed the colony down during migrations. This escalated to the point where he was eventually abandoned by the colony as he would impede the progress of their migration and leave them exposed to predators.
While Ayden was traveling through the Rock Tunnel, she took Koumori in. He was initially very hostile and resentful to her, which only furthered after evolving into a Golbat. He would blatantly disobey her orders and ignore her every chance he got. However, when he realized that in order to evolve into a Crobat, he would have to have a good relationship with her. He attempted to fake these feelings, but in doing so, he eventually warmed up to her and evolved into a Crobat as a result.
He was primarily used by Ayden during her time in Kanto and now currently resides in her home in Phenac City.
Koumori is named after original character, Koumori.