Pink film directed by Wataru Oku.

Akio is a struggling married writer who tries to write at home. One day his teenager half-sister who is at high school comes to visit. They feel attracted to each other.

A woman known as "Angel" suddenly appeared in the underground mahjong world. She gambled her own body through strip mahjong. But she was strong, and had never even been naked before. Angel had a reason for playing strip mahjong. She was searching for her father, from whom she had been separated. Her mother had apparently also played strip mahjong in the past. By doing the same thing as her mother, Angel was hoping to find a clue. And as Angel got closer to the truth, she challenged the yakuza to a match as their proxy player!

Mari, a female pickpocket with exceptional dexterity, lives a solitary life. Meanwhile, Yuji, the leader of the mahjong club "Jyoko-kai," which is on the verge of disbanding, happens to come across Mari pickpocketing in action and sees in her skill that she has the talent to become a world-class mahjong player.