I Am in the Same Class as the Crazy Male Leads

I ended up inside the trashy novel I wrote in my senior year of high school. And in a novel where all the male leads are abnormal in their own way. "Don't call me class president, not like that, Hayeon." This one is Kang Seon-woo, who seems like a well-behaved top student on the outside, but is actually a psychopath. "Yeon-ie, want a candy?" This one is Cha I-han, who looks like a delinquent but has a good personality and is full of aegyo. But he's the type to drain the female lead dry with his affection deficiency and obsession. "...Afraid... you'll be scared...." This one is Kim Chan-seung, a promising national swimming athlete... but he's set up to stalk the female lead. "Serious...