H na Koakuma-kun wa Nugase Jouzu de, Yajuu Sugi!

Kyoko is a 28-year-old single woman. The night she got her heart broken, she has sex with a good-looking bartender after getting drunk. The next day, he shows up at her work. Telling Kyoko, "It was a first time for me to come so many times" However, there seems to be the other reason that he approaches her. What is his true identity?

(Source: Amazon)