Hinata, a childhood Hinata of Mayu Mayu, cannot leave her alone as she is shy, withdrawn, bad at sports and has few friends. However, Mayu Mayu helps Hinata homework and studies for tests with her. They have a give-and-take relationship, with Hinata protecting her from bullies and Mayu helping her study in return. Hinata is someone Mayu looks up to. Before graduation, Hinata decides to go on a trip to her villa with Hinata, just the two of them. She stays the night with her beloved Hinata. Something begins to bud there...