RKI-501 The day when the insensitive girl who finished licking a man fell into the cunnilingus of an old man, Koto Ai.

"I don't feel it. Can you just insert it?" A bored girl waits for the man to ejaculate while playing with her smartphone. - The girl with frigidity had no qualms about selling herself to men, and had a cold demeanor from beginning to end when she was having sex with men. - One day, that girl meets a development guy who knows everything about women's bodies...! - ? - A girl who has never felt anything before is stimulated by the man's tongue technique, and for the first time has an orgasmic experience where she is made aware of the weakness of a 'woman's body'! - The day when the insensitive girl first learned about pleasure...!