Watashi no Shojo wo Moratte Moratta Sono Go.

A happy love comedy full of "firsts" that starts with a one-night stand!
Misaki Mano is almost 29 years old, and her age is equal to the number of boyfriends she has had. As a result of her virginity, she ends up spending a night with Kutsuna, the most handsome guy in the company, in a drunken rage without remembering it at all!