Synopsis

At the center of the story are Kasuga Yuma and Hasegawa Itsuki, who unexpectedly become the focus of public attention after an interview about Japan’s partnership declaration system for sexual minorities goes viral on social media for being “adorable”.
 
Soon after, the pair receive an offer to participate in a documentary project that will film their cohabitation for 100 days. Kasuga agrees, driven by his desire to promote greater understanding of same-sex relationships. Although the two have already broken up, Kasuga persuades Hasegawa to take part, and they decide to act as a loving couple in front of the cameras.
 
Unaware of their past, Kayano Shiho, a director at the production company, enthusiastically sets out to capture their relationship as it truly is.