Honoka comes home with an armful of her brother Hirokazu’s favorite snacks and drinks, only to discover their classmate Akasaki has been invited over for a study session. Surprised by the unexpected guest, Honoka misreads the situation and assumes Akasaki must be Hirokazu’s girlfriend. While the three share the living room, Hirokazu looks for a quiet opportunity to set things right with his sister without drawing attention, leaving the evening filled with unspoken tension and careful glances.