Hikari's Mimirol, known as Buneary in English-language media, is a Rabbit Pokémon first met in the wild. It remained shy around unfamiliar humans and Pokémon but developed an instant romantic attachment to Satoshi's Pikachu upon meeting. Despite demonstrating evasiveness and reluctance during Hikari's capture attempt, she successfully caught it for her team. Mimirol regularly competed in Pokémon Contests supporting Hikari's coordinator career. Its performances highlighted inherent cuteness and agility, featuring graceful movements and appeal-focused techniques. Notably, during the Hearthome Collection fashion event, Hikari emphasized Mimirol's natural charm over elaborate accessories, a strategy contributing to her victory. The Pokémon encountered difficulties in battles demanding adaptability. During a match against a trainer specializing in cute Pokémon, Mimirol struggled against opponents exploiting type advantages until Hikari adjusted tactics mid-battle. It also participated in ping pong-themed competitions, displaying coordination beyond standard contests. Mimirol maintained persistent romantic affection toward Pikachu throughout their travels, a dynamic evident during group training or leisure periods. Later in Hikari's journey, Mimirol evolved into Mimilop (Lopunny), gaining increased physical capabilities while retaining its core personality. Specific battle involvements included a contest semifinal where it performed alongside Hikari's Pochama in a double performance. It also faced recurring antagonistic groups seeking to capture Pokémon, necessitating coordinated efforts with Hikari's team for safety.