Keep This A Secret From Mom엄마한텐 비밀이야 ; 要對媽媽保密唷! ; Don't Tell Mom! ; Keep It a Secret From Your Mother!

Hae-sung is living with Yeon-ah, his moms friend. He thought studying hard was all he had to do, but the other top students are enjoying their romantic affairs on top of that. "Studying isn't the only thing you do in a classroom?" --- - [Official Traditional Chinese Translation ](https://www.toptoon.net/comic/epList/80972)