As someone who read the Original webtoon.the cdrama based of it ruined the Characters and Message . Hyungsuk (mc ) would never Run away from a fat girl. He literally has a crush on one in the comics .Jinsung the "Bully" also wasnt Like that . Zoe( i think ) got Character traits she never had . Jiho (the one who gave the Main the bread ) . In the comic Hyungsuk would be the one to do so . Jaeyeol somehow can speak now ?? That Character never spoke in the whole comics .Vasco ( the one who protects the mc ) also Has another Personality .i know Its based and Not "original to the source" but when you use the Same Name and very similar Plot . Just use the source Material.