Even a Replica Can Fall in Love

While still grieving and shocked by Suzumi's death and Ryo's simultaneous disappearance, Nao is told frankly that she will be attending school from now on. Confused, Nao stays holed up at home when Ritsuko and Aki come to her and say, "Let's go to a hot spring."

Sunao and Nao head to their respective destinations: Kyoto, their school trip destination, and Fujinomiya, Ryo's hometown. As Sunao tours tourist spots with Akiya, Sato, and Yoshii, he gradually becomes closer to them. Meanwhile, Nao and Aki, who have arrived in Fujinomiya, are enjoying activities at a ranch when they unexpectedly run into a certain "senior."

While enjoying her school trip, Sunao is unexpectedly confessed to by a classmate she barely knows. Feeling down after hearing what he said, she is approached by Sato. Faced with Sato's frankness, Sunao confides in him about the feelings she has kept hidden in her heart. Meanwhile, Nao, who is making the most of her time in Fujinomiya, is excitedly suggesting a "pillow fight"—a must-do activity on school trips—to Mochizuki and Aki.

Helping with the potato harvest, going to see the beautiful Mt. Fuji... Nao begins to notice the changes in her own heart as she experiences the beauty of the changing seasons. Meanwhile, Nao and Aki are summoned by Sunao and Shuya, and entrust the rest to Mochizuki before meeting in Kyoto. Thus, the four, the originals and replicas, gather in Kyoto, but something seems to be amiss...