もっと、ダメにしてあげる

When office worker Naoya Sakura gets home from work one day, he finds a handsome college student he doesn't recognize waiting outside his door. The stranger turns out to be his cousin Haruto, whom Naoya used to dote on when they were kids, and before he knows it, the two end up living together. With delicious home-cooked meals and heavenly massages, Naoya is more than happy with Haruto's attentive care. But little by little, Haruto’s “taking care of him” starts to escalate…… ♥ (Source: Core Magazine, translated) Note: Includes one extra chapter.