Mitsuru is working in the sex industry at a 'Hole Wall Speciality Shop' to help pay his family's debt, but was accidentally discovered by an old classmate Keita.
Keita swears to help out his friend with the money problems, but when all is said and done, will he still be able to see Mitsuru only as a friend...?

Muroi Yuuya is tired of being compared to his brother Takumi who is looked up to by everyone. To vent his frustration, Yuuya starts frequenting the 'Hole Wall Specialty Shop'. Only being able to see the back of the person he is having sexual intercourse with, Yuuya soon develops a superiority complex and gets hooked on an employee with the stage name 'Taku'. However, one day he notices a mole on his brother's right hand which is the same as the one Taku has?