"It is fitting for an ill-mannered lad to face consequences."
Akira, a college scholar, was proposed to by Itsuki, his childhood pal. Though Akira had always seen Itsuki as his "little brother", he opted to reply to the confession candidly.
Post-confession, Itsuki carries on as he typically would before expressing his emotions. Akira is confounded by his unwavering comportment, and each time Itsuki draws near or contacts him, Akira's heart races.