En emisión manhwa
Solo el manhwa está indexado; sin novela conocida aún.
Sister's Sex Education
También conocida como: Nunaui Seonggyoyuk · Sex Lessons with My Sister · 누나의 성교육 · 童貞男子はお姉さんの思うがまま♡ · 御姐的實戰教學 · Noona's Sex Education · Sex Lessons With My Sister · 御姐的实战教学
"I'll make a man out of you!" Ji-Hoon has a secret that keeps him from losing his virginity. His sister, Ji-Ah, goes out of her way to prepare a special lesson on sex for her brother. Will Ji-Hoon be able to pass her class and lose his virginity?