Love x Ero

Nozomi has a childhood friend who is 7 years older than him, Mitsuru. Mitsuru not only teaches him how to study and play, but also teaches him how to kiss and masturbate! Nozomi wants to lose his virginity by having sex with a girl, but the only thing he can think of is doing it with Mitsuru. On top of that, he was harassed by an idol named Yuuma, while he himself uncontrollably harasses Jin who is younger than him. How will this continuously complicated love end?