Choemyeonhakgyo

"You are getting very sleepy..."
Chan-Gyu Kim learns hypnosis from watching YouTube videos so that he would become popular amongst the girls at his school. However, things don’t go according to plan as he finds himself encountering repeated failures. He later meets mind reader Ui-Ju Yeo, who has extraordinary abilities just like he does. Their interesting but unfortunate story kicks off from there...
(Source: WEBTOONS)