Naoto finds himself torn between the affections of his childhood friend, Chika, and his girlfriend, Aya. Struggling with guilt over his desires and the complexity of his relationships, Naoto attempts to sever ties with both women to find a moral resolution. However, in an unexpected turn of events, Chika and Aya propose a daring arrangement to share him, turning a tense love triangle into a hedonistic partnership.
Naoto finds himself torn between Chika and Aya after a secret encounter with Chika leaves him riddled with guilt. When he attempts to resolve the conflict by breaking things off to do the right thing, the two women surprise him by proposing a daring solution: instead of forcing him to choose, they decide to share him. This unexpected pact leads to a passionate encounter that binds the three of them together in an unconventional relationship.