"The face you make when you're turned on is so cute, Koto." With sweet words and unrelenting caresses, he's driving her to the edge...

Kotoha is an office lady who leads a normal, single life. One day on her way home, a handsome young man embraces her and kisses her on the cheek. At first, she takes him for a pervert, but it turns out he's Julio, Koto's cousin who lives in Italy!! What do you mean he's going to be her little brother starting today!? Being used to Italian-style physical intimacy, he pleads, saying, "I want you to kiss me like you used to when I was a kid..." Not being able to resist his puppy-dog eyes, she gives in, but the mood suddenly changes!!