Siblings Forced to Conceive as Deaths Ultimatum Sets the Stage

Takami Akitoshi lives alone with his elder sister, Hitomi, harboring hidden desires for her. One day, Mina, a mysterious girl claiming to be Death, appears to take his soul. Learning his lifespan has ended, Hitomi pleads for his life. Moved by her sincerity, Mina offers a deal: if Takami fathers a child within a week, he will live another 10 years. Takami’s gaze shifts to Hitomi, signaling his resolve to fulfill the condition.