Rina Sanjo, a brunette girl, feels something in secret for Zen Narazaki, her younger, bland and boring childhood. Zen is forced to disguise himself as a bear, and Rina reassures to see him. He has been playing to disguise since he was XX years old and sucking Zen’s cock as an extension of it. They have been doing it for a long time. But now Zen says he wants to end that relationship. Because I’m good … I want to bed with you. In this way, their mutual feelings finally come to light and immerse themselves in a world of love.