Hisami is a highschool girl whom has never had a boyfriend in her 17 years of life. Although she developed a crush on her classmate Haru-kun at a school festival event, due to a misunderstanding she ended up dating his friend, Narushi-kun. On top of that, Haru-kun started dating Hisami’s best friend, Izumi. In this situation, one day Izumi suggests “swapping lovers for just 1 day.” Even if it’s just for today, Hisami can date Haru-kun! Hisami is extremely excited, but she was suddenly brought to a love hotel by Haru-kun!? *** At last, 4 of the early works of “national treasure in the field of Love Comedy,” Yoshihara Yuki, published as a volume!