On Valentine's Day, after the two neighbors eat dinner together as usual, Mahiru gives Amane some hot chocolate. Amane accepts it as a normal Valentine's Day gift, but Mahiru seems restless, as if she has something to tell him. When Mahiru rushes home, still unable to say what's on her mind, Amane notices a small bag with a card at his front door. Inside the bag are chocolates that Mahiru made especially for Amane, who had said that he doesn't like very sweet things. In return, Amane gives Mahiru a special present on White Day.

Amane explains the reason he left home in middle school and began living alone. Mahiru empathizes with his sorrow and embraces him. "At least let me spoil you a little." The next day, Mahiru's classmates ask her about the boy she was seen walking with. Mahiru nonchalantly admits that it was a date, surprising Amane. Mahiru then confesses, "there's no one more dear to me in life than him."

While Amane realized that Mahiru had feelings for him, his past experiences left him without the confidence to move forward with her. On school sports day, the two end up participating in the scavenger race event together. When Mahiru finds out the item she has to search for, she grabs Amane's hand and heads for the goal, surprising Amane. Then, in front of their stunned classmates, Mahiru courageously announces that Amane is dear to her. In that moment, Amane makes up his mind to confess his feelings.