Jigoku ni Ochite yo, Onii-chan

Yudai is a college student left emotionally shattered after an unexpectedly early breakup with his first girlfriend. The sudden end of the relationship leaves him adrift, trapped in a lingering sense of emptiness that colors his everyday life. Just as he struggles to find his footing, his family dynamic shifts entirely when his parents remarry, bringing a new presence into his home. That presence is Yuna, his newly acquired stepsister who has just moved in following the marriage. From the moment they meet, Yudai experiences something far more intense than simple attraction. His connection to her transcends love at first sight, stirring powerful emotions that begin to pull him out of his despair and give his life unexpected direction. However, beneath the surface of this budding bond lies a hidden complication. Yuna carries a significant secret that threatens to disrupt everything Yudai thought he understood about their new relationship. As his feelings deepen, the truth she conceals could change the course of both their lives forever.