Following a strange dream, Yuko Yoshida wakes up to find she has grown demon horns and a tail. Seiko, Yuko's mother, reveals that their family are descendants of a dark clan who live in poverty because of the opposing light clan.

Yuko challenges Momo to a battle during the weekend, which ends up turning into an all-day running session. Another demon girl prepares to set Yuko back on the right path.

Yuko's demon ancestor, Lilith, appears in her dream to give her some advice, only for her to forget everything Lilith said when she wakes up.

Momo discovers a switch on the bottom of the statue that Yuko carries around which, upon being flipped, gives Lilith the opportunity to possess Yuko's body.

Yuko buys a camera with the money she intended to use to pay off her debt. Later, she is assigned to take care of Momo's laptop before delivering it to Ryoko.

Lilith sends Yuko into Momo's subconscious, where she ends up tidying the dark muck surrounding her dreams.