Ari Kojima and Sousuke Fujitani first crossed paths as students attending the same college seminar. Despite four years of dating, they've faced obstacles to spending time together since graduating. They first dealt with distance and lengthy commutes, then clashing and unpredictable work schedules.
Ultimately, Ari and Sousuke reached a mutual decision to cohabitate and establish a non-marital partnership. While they anticipate opposition from their parents, the couple is unprepared for the hardships of maintaining their relationship.