The back of my throat is my erogenous zone. Honoka, a rookie intern, has the utmost respect for Arai, an otolaryngologist. However, there was a deep darkness in his mouth that tortured the female test subject until he climaxed in the back of the throat, called 'throat orgasm research'. One day she witnessed the scene and was forcibly made into a test subject by Arai. Honoka who endured the throat torture called daily research eventually began to feel more pleasure in the back of her throat than she tasted in the back of her vagina.
