A punk-yakuza-fantasy comedy set in Onomichi.

In Japan, a Filipina migrant is chosen by a haunted dress to be its new owner and is manipulated into hunting down the murderer of the previous owner.

Misaki Miyasaka, a transfer student, who joined the Hanayama Gakuen "Undressing Mahjong Club". She has a special ability to see the character's role when she reaches sexual cum during Mahjong. One day, Misaki and his friends are going to challenge the undressing mahjong game against the yakuza to protect the peace of the school. The second series of "Ura Mahjong Mijin Retsuden" series presented by Gambling x Dense Eros.

Amamiya, a blind sparrow. Reading his opponent's tiles with his invisible eyes, his terrific skill turned into a legend. It was Amemiya, which was far from the world of Ura Mahjong, but his daughter, Yume, was deceived by the Chinese Mafia and owed a large amount of debt to take on the behalf of the yakuza. The third series of "Ura Mahjong Mijin Retsuden" series presented by gambling x dense eros.