Ryoutaro Hanamaki

Kirara's manager who gives her sex lessons and punishes her for her disobedience. At first, he tells Kirara to give her virginity up to Gin, but after learning that Gin is a "virgin killer" and that he loses interest in his conquests after having sex with them, he then tries to prevent Gin and Kirara from having sex. Hanamaki turns out to have been in love with Kirara ever since he first laid eyes on her. After Kirara declares that she's quitting the celebrity world to be with Gin, he tries to make her love him, but fails.