HOMA-155 - I, the worst, having sex and impregnating her sister while drunk and feeling sexually aroused, Nitori Hina.

I would never betray her. I would never cheat! Even if I pretend to be a saint, what if her sister is a lively and beautiful woman with an amazing figure, and when drunk, she becomes a kiss fiend, extremely lewd, flaunting her large breasts and aggressively seducing me...? There's no way anyone could resist! Saying she has a boyfriend... isn't he just a hopeless womanizer!