Marina Akitsuki

Marina Akitsuki (秋月 真理奈, Akitsuki Marina) Seiyū : Kawashima Rino.

Third year student at St. Kaede School. Senior daughter of Kayoko. As the mother is busy with work, and in order to share the pressure of the mother at home, she would take reins with household chores--indeed she has a conservative and serious character. Because of this her father often obsesses over her as if she were his young bride, Marina has accepted this role in absolution; she often takes a submissive stance towards his advances, and realizes in affect that she is pleasuring her father and serving him. This is in contrast with how her sister feels, she is less at odds with her feelings and has come to a realization that her father needs her to fulfill himself, thus she has assumed the role of the wife. Her appearance is more like her mother, rooted in the "Japanese style", has long brown hair, violet eyes, and a large bust.

She is modest with her affairs and even had secret dates with her boyfriend Masato. Before the relations with her father started taking place; she wanted to pursue an intimate relationship with said boyfriend, later on she realizes he was just a horn dog--and surely papa will treat her better.

In the OVA version, the astute Kōzō rapes her, by laying a trap for Masato, who had his first time with another girl and not with Marina. As planned Marina and Masato would meet and she would give up her virginity for him, outraged by the thought--Kōzō hatches a plan. He gets one of his already establish sex slaves,(Sana, Airi's BFF) to intercept Masato and have sex with him instead before he can get to Marina, meanwhile Kōzō forces himself on his daughter.

Eventually Marina saw her boyfriend's sex video with Sana while she and her father were having sex, this was one of the first steps in accepting her established role with her father.