She was working for Shuichi Wagatsuma at the bar before she met Kengo's older sister Mayu and fell in love with her.Shouko looks like a beautiful man and she's aiming to do actually.Not knowing Shouko is a woman,Mayu falls for her too,but after realizing it,she suddenly dumps her.Turning into a shadow monster,she becomes a trouble for everyone.

Shouko then inspired by the words of Aya and release the monster within her.