Hiroshi Kawada, a student at Washimi University, was leading a busy life as a third-year student. He was trying his best to secure a good job for the sake of his cheeky yet beloved and adorable girlfriend, Nanami Miyasaka. However, one day… when Yoriko Mizuki, who belonged to the same seminar as Hiroshi, made a move on him… the relationship between Hiroshi and Nanami began to shake. The heartbroken Nanami was then invited by Seiya Tendo, leader of the club she is in and a popular host, to step into a host club… With his beloved girlfriend being seduced away, a bewitching woman trying to tear him and Nanami apart, and a sweet trap painted with innocence… Their relationship was supposed to return to normal with the help of the respected senior, Seiya. But… What was happening behind his back? Hiroshi didn’t know… that things had already spiraled out of control.