Ep. 3: Saki struggles with insecurity and jealousy while Naoya attempts to reconcile with her.

3

Saki, Nagisa, and Naoya share lunch in a private gym storeroom. Saki feels inadequate compared to Nagisa, who handles chores and cooking. Determined to contribute, Saki burns curry and later attempts to initiate sex with Naoya, but he refuses. Believing he prefers Nagisa’s larger breasts, Saki returns to her parents' house next door. Nagisa feels guilty enjoying Naoya’s company alone. Naoya exhausts himself trying to apologize over three sleepless days, but Saki rejects his efforts. Nagisa decides to help by tricking Naoya into groping her breast so Saki can see. This act triggers a jealous rage in Saki, who rushes back. Nagisa then insists that Saki must talk to Naoya to resolve the conflict.