The witch school beauty had no scandals until she met me

Su Hong, a defense scientist who died of exhaustion in his previous life, traveled to a parallel world. In this life, he decided to lay low and become a useless eater. To keep a low profile, he managed to get into a top-five university nationwide by controlling his college entrance exam scores. However, upon entering university, he suddenly triggered a system. [Host, within ten seconds, find someone to kiss for thirty seconds, or your body will explode.] Su Hong, whose class was filled with monks, had no choice but to rush out and grab a man to kiss for thirty seconds. But after the kiss, he realized... Whoa! Wasn't that the school beauty, Mu Siyu? "Mu Siyu, listen to my excuse. I was just joking..." "Your sister!" Mu Siyu raised her fist...