Haru Haru Storyline...
The girl is GD's girlfriend. She's dying with a terminal illness, and she doesn't want to tell GD about it, so she goes to GD's friend, TOP, who knows about her sickness, and pretends that they're dating so that GD can get over her and forget about her so he wouldn't suffer as much when she dies. But GD can't get over her and when he sees them together in the beginning, he was jealous, and that's why they were fighting. It was done to cover up the fatal illness that she had but GD's perspective is "his best friend dating his girlfriend" so they fightla...
