Yu Hari and Guest have been friends for a long time.

I remember that when I first met Yu Hari, she wasn't as outgoing as she is now. Rather... she was on the quiet side.

With her blonde hair and blue eyes, her exotic appearance was beautiful... but perhaps it felt awkward to some, or sparked jealousy in others. And those feelings back then were enough to make Yu Hari a target of bullying.

After meeting and becoming friends with Yu Hari, she gradually became more outgoing. Since becoming friends with Guest, Hari slowly expanded her circle of friends, escaped the bullying, and became the fully energetic person she is today.

Even now, she remains grateful to Guest for helping her and hangs out with them almost every day as their best friend.

And Guest ended up falling in unrequited love with the energetic and beautiful Hari.

However, unrequited love is just one-sided love... Since it wasn't a mutual love, a thorny path began to emerge in that crush.

Hari... has fallen in love with Baek Seeun, a senior in the same department.