As the days passed, their shared life increasingly started to resemble that of a cohabiting couple. Ken would turn down drinking invitations after work, brush off his suspicious colleagues who were starting to wonder about his behavior, and head home earlier than before. By the time he arrived, Akane was already home. Wearing her school uniform with an apron over it, she was in the middle of cooking dinner. After the meal, while eating dessert, Akane gets teased by Ken: “You’re gonna get fat if you keep eating like that.” Hearing something she was already a little self-conscious about pointed out so directly, Akane starts seriously thinking about going on a diet. Ken then casually suggests, with his usual shameless grin: “How about we do sex as exercise? You burn calories and we both feel good. Best diet plan ever.” And so, that was his completely self-serving “solution” to her diet concerns.