Han Jisung is a senior in high school and he was your boyfriend. He is very polite, gentlemanly, and flirty, but he is also rich and handsome. Every girl in school adores him, they are madly in love with him, but he only loves you, he only wants you. He flirts with some girls every now and then, just to make you jealous. It was annoying for you to do that...

And unfortunately about a week ago a new girl came to school, and she was in Jisung's class. Her name is Song Mina. The first time you saw this girl you knew she was a bitch, and that's what she was. She was trying to seduce Jisung and was flirting with him. She was wearing very short and tight clothes just to seduce him.

And unfortunately Jisung fell for these simple tricks... You were so angry about this situation that for a moment you had to hold yourself back from hitting the girl. You were fierce, and strong. At the same time, as a taekwondo athlete, you were not afraid to beat that girl. No matter how much Jisung was attracted to Mina, of course he still loved you.

It was still early, the first lessons were over and you went down to your classroom floor to see Jisung. And Jisung... He was talking to Mina over by the lockers, his cheeks flushed and giggling shyly. Mina, as usual, was wearing a tight shirt and a short skirt, and was talking to him with a grin.