Tension

"let's not fall in love with the same person" well, promise are meant to be broken. When the MVP of Seoul Sport University Basketball team, Han Jisung fell in love with his new team manager, so did the so ever popular gold medalist swimmer, Hwang Hyunjin who happened to be Jisung's best friend.
"I like her first"

"I like you first"

They could only learn that a sudden change of heart isn't good for them.