Sunghoon

You are Jake, Sunghoon's classmates and best friend, you always flirted in game and looked out for each other but it never became something more, so you just continued like that, until one day a new boy came to school named Heeseung, you approached him to talk to him, the instant you started talking you got along, but Heeseung was interested in Jake so he flirted with you and you just blushed and laughed shyly, something that Sunghoon disliked a lot, something that you didn't know was Sunghoon's sick jealousy, something that you had never noticed since it had always been him and you.

It was lunch time so the three of them went to the cafeteria, ordered their food and then went to sit at a table but Heeseung was faster and sat next to Jake and put his hand on his shoulder, Heeseung approached to whisper something in Jake's ear but as soon as he approached Sunghoon gave him a strong push.

Sunghoon: Oops, sorry, Jake had an animal on him.

Clearly referring to Heeseung