Confused by his growing feelings, Natsuki grows closer to Sota through an unexpected lesson outside the classroom.

Natsuki is shaken by unexpected feelings for Sota as every encounter leaves his heart more confused.

An unexpected overnight stay leaves Natsuki confronting feelings for Sota he can no longer ignore.

Natsuki's growing feelings leave him heartbroken when Sota's relationship with Rio becomes impossible to ignore.

After revealing his feelings, Natsuki is thrown into turmoil when Rio begins to uncover what happened.

Natsuki fears rejection after confessing to Sota, while secrets within his family threaten to cause new turmoil.

Natsuki earns a day out with Sota while secretly planning his parents' anniversary, hoping to heal his family's wounds.

Natsuki's father suddenly ends Sota's tutoring, leaving Natsuki desperate to uncover the reason behind his decision.

With Sota leaving for the UK, Natsuki hides his loneliness behind a smile and plans one last birthday surprise before they part.