Now married, Kotoko and Naoki head off to Hawaii for their honeymoon. They soon become acquainted with fellow newlyweds Horiuchi Mary (Mari) and Takumi. Things start to get ugly when Mary decides to interfere with Kotoko and Naoki's relationship, by inviting Naoki everywhere she goes. Whole honeymoon passes in bad mood for Kotoko and Takumi, both sad because they didn't have time to be with their loved ones. Last day of honeymoon Kotoko suggests to Naoki that they could spend the last day alone together, and he agrees. When Mary realises that, she pretends to be sick in her room, which results with Takumi calling Naoki for help. As Naoki is examining Mary, he touches her belly, and Kotoko, filled with jealousy yells at him not to touch her. Naoki gets mad, and replies that she'll have to hold her jealousy down if she wants to be doctors wife, which makes Kotoko run out in tears. Takumi goes to get medications, Mary reveals her true intentions and confesses to Naoki, who immediately rejects her. When Takumi got back he heard her saying that she will separate them, and slaps her, which makes her starting to respect him, and they promise each other they will be happy together. Meanwhile, Naoki finds Kotoko, who was lost. They spend the last night happily together, the episode ends showing them kissing (in bed).