Natsukashiku Omou Kimi wa Dare  

Who Are You That I Feel Nostalgic For, 懐かしく思う君は誰

Ten years have passed since Hajime played with Oto-chan. They had agreed that if he grew taller than her by the time they were adults, they would marry. Despite having fond memories of their time together, Hajime lived a typical high school life until now, when it is time for them to fulfill their promise. As Hajime approaches the tree where they made their pact, he is struck by the sight that greets him. This is a suspenseful tale that combines elements of both charm and horror.