In the endless nocturne, Yuji Mikage is a university student helping at the convenience store 'Satsuki' that his brother left behind. The store manager is Kanon Satsuki, after whom the store is named. Yuji's brother, Ryoichi, died in a car accident about a year ago just before the opening of the store that he was supposed to run with his fiancée, Satsuki. Satsuki has taken over his wishes, and Yuji has been helping at the store for the sake of his deceased brother, but before long, he found himself drawn to Satsuki, who is bravely overcoming her sadness. The remembrance service for Ryoichi's first anniversary is approaching. As they talk about the memorial service, he mentions, "Since Satsuki is still young, it would be better for her to take this opportunity to be free. I'll manage the store somehow." However, Satsuki replies, "As long as I’m not disliked by you, Yuji-kun, I want to continue working here. I love this job." "It's not a nuisance!" As time passes, surely she will forget about my brother and eventually fall in love with me! Yuji's feelings began to swell.
