100％ no Onnanoko ni Deaeru Kanousei ni Tsuite.

Yoshida Junichi is a man who was below average in every way, and he was fed up being ignored by women. One day, the owner of a mysterious antique bookstore gave him a book as a gift. It was a book of aphorisms full of corny pickup lines — boring! That shopkeeper must have sold out of good books! But