College student Fuji Shusuke met the industry elite Seiichi Yukimura in an accident. In order to save him from injury, he had to stay in Yukimura's home for a month. Within a month, the two people's originally unrelated life circles became intertwined in various ways, and the misunderstandings between their respective friends allowed the two shady people to take advantage of and have fun for a long time.
All the peace and tranquility were broken when Yukimura discovered that someone had plagiarized his work and won the prize. With Fuji's help and cooperation, Yukimura was finally able to prove his innocence and ability. At the same time, the secret feelings between the two became increasingly impossible to ignore. The friendship that the two tried so hard to conceal finally changed on a moonlit night, but Yukimura, who has a huge family behind him, couldn't make a promise simply and easily...