On her school's rooftop, Mikami Inaba engaged in a battle against a fighter from a rival school. During the brawl, her friend Haru emerged on the scene. As Mikami's focus shifted towards her friend, the opponent took advantage of the opportunity and lunged towards her. The forceful collision resulted in the destruction of nearby rabbit cages and propelled both of them off the roof. As she plummeted, Mikami clutched onto a rabbit for dear life, causing an astonishing occurrence. A vibrant pink light radiated from her and united her with the rabbit, creating a new persona called Mimika. Today, Mikami only appears in the face of danger that threatens her or her friends. Although, she remains as Mimika for the rest of the time.