Above the Influence: When he defeats Himiko, he's barely able to resist temptation... not without giving us a Panty Shot first, of course. In the final episode, he kisses Himiko and it seems things are going to go a lot further between them. Even though she lays down on the couch and is not actively resisting him, he knows her Consent is very dubious, and this time he solidly refrains from doing anything further.
Abusive Parents: His mother nominated him to go to the island, though in fairness he was hardly kind to her as well.
Love Makes You Dumb: Her crush on Date caused her to be kicked out of the hospital she worked at for covering for him, and later in the survival game, she trusted him again... only to be betrayed by him again.