Usagi-chan de Cue!! - S01

Mikami Inaba was battling a rival from another school on her rooftop when her friend Haru showed up. Distracted by Haru's arrival, Mikami left herself open, and the opponent rushed her. Their clash shattered nearby rabbit cages, sending them both tumbling off the roof. As she fell, Mikami grabbed one of the rabbits in desperation. A burst of pink light flashed-and suddenly, she merged with the rabbit, gaining a new personality named Mimika. Now, Mikami only emerges when she or her friends are in danger. The rest of the time, she remains as Mimika.