Kata kunci Affection

Empat sekeluarga terkandas di sebuah pulau mencari sumber untuk terus hidup apabila masa lalu mereka terungkai dan terpaksa menghadapi keadaan yang mengejutkan.

The story begins with Keita Suminoe, a male third-year junior-high school student studying for his high school entrance exams. He is living in a home with his older twin stepsisters, Ako and Riko, who share no blood relation to him, and they help him prepare for his exams. Even though he initially dislikes himself for it, he begins to become attracted to his two step-sisters, and his two parents encourage him to eventually get married to one of them.