This is a suspense drama about a teenage girl with the ability to change into a leopard. Ozaki (Hinagata) is a high school senior who lives quitely with her father and younger sister (Yamaguchi). One day while kissing her boyfriend Mizushima (Kato) the (leopard sign birthmark ???) on her chest starts to get hot. Her blood starts to flow and her eyes become shiny. THis is shock to Ozaki as this has never happened before.