Dakara Boku wa, H ga Dekinai.: Caesar no Bonnou

Kaga Ryosuke, a helplessly romantic teenager, was walking in the rain when he sees a beautiful girl with red eyes drenched in the rain. Everyone was avoiding her, but Ryosuke was taught to treasure women so he offered his help by letting her dry off at his home. Ryosuke can't imagine that this mysterious girl would stab him in the chest and leave him to die… Or did she? Who is this pretty girl and what does she want with him?

One day, first-class Grim Reaper Lisara, for her own reasons, secretly enters the human world. After searching in vain for her target, Lisara is completely exhausted. That's when Ryosuke Kaga approaches her. To help Lisara out, he leads her out of the rain and to his cozy home, where he tells her, "I will do anything to help you." When Lisara hears that, she suddenly embraces Ryosuke and......?! (Source: Yen Press)