Pachirisu was caught in The Lightning Bond! when it appeared before Lexi and Gary while they were on Kin Island at the Bond Bridge. It ended up helping them when Lostelle was being held captive by a Hypno. After successfully stopping the Hypno, Lexi captured Pachirisu.
Pachirisu, like many electric types, is hyperactive and giddy at most times. Pachirisu is mischievous and likes to lighten the mood when others are upset or angry. Despite it's nature, it's an extremely keen battler, fighting mostly for the thrill. Unfortunately, this often leads to it losing due to it not taking the battles seriously enough.
Pachirisu is able to create electric fur balls that crackle with static energy. She also makes electricity with pouches in its cheeks and shoots charges from its tail.