Sang-chul has just returned from the army. He's trying to win over the freshman queen, Yeon-oh, but... With his pride wounded, Sang-chul asks Hee-soo to teach him the techniques, and so begins a secret and special class! Hee-soo and Sang-chul's sex class. Will it ever end...?
**Original Webtoon:**
[Ridibooks](https://ridibooks.com/books/3587010984), [Naver Series](https://series.naver.com/comic/detail.series?productNo=10626923), [MrBlue](https://www.mrblue.com/comic/C000061147), [Lezhin](https://www.lezhin.com/ko/comic/sclass), [Toomics](https://www.toomics.com/uplmscg/episode/toon/7793)
**Official Translations:**
English: [Honeytoon](https://honeytoon.com/comic/lesson-s), [Toomics](https://toomics.com/en/webtoon/episode/toon/7793)
[Portuguese](https://toomics.com/por/webtoon/episode/toon/7793)
