@Bibbedibob - for some reason, I always have trouble memorizing Korean names too lol but from what I gathered, the light-haired guy (her current crush) is the leader of Team 1. Ba-Reum, the heroine, is on Team 3 whose leader is the dark-haired guy she often clashes with (and who seems to be developing feelings for her xD).
That said, I totally root for the dark-haired guy. Their chemistry and dynamic is much more lulzy and comes with a lot more fireworks lol.
How to tell if there's something between you and your crush 101, feat. Yoo Yeon
"He looks at me~~"
"And I look at him~~"
"He looks at meeee~"
"And I look at himmm~!!"
xd I thought for a sec Yoo Yeon was going to roleplay a "romantic" scenario with Ba Reum for a second