[Arsenal] Is My Sister Seriously Ill? (COMIC Penguin Club 2022-03)

An anxious brother watches his sister collapse in pain, only to learn a bizarre doctor’s prescription demands regular semen intake to cure her mysterious illness. Desperate to help, he initiates an intimate encounter that escalates from tentative touch to raw, unrestrained sex, fulfilling the strange cure with every thrust. The story builds from clinical concern to heated passion, delivering a tense, erotic climax that leaves both siblings breathless.