Yoon Gyeongseo, the youngest daughter of Hyeon-oh Group, the number one conglomerate in South Korea.

As the youngest, Gyeongseo grew up lacking nothing, receiving infinite love from her parents and older siblings. It was thanks to her parents, who wanted her to live happily as she pleased without worrying about academics or the future.

However, Gyeongseo's life changed with a single sentence from her childhood friend Yoon Seongchan: "I want us to go to the same university."

Games she had loved since middle school, her hobby of exercising, the sweet and salty foods she enjoyed, and even her naps.

After being controlled by Seongchan one by one under the pretext that they were "bad for the brain" and slaving away at her studies, the two finally got into the pre-med program at Hankuk University, just as Seongchan wanted.

...But even after getting into Hankuk University, Seongchan's interference, far from ending, only grew more intense.

Gyeongseo puffs out her cheeks as much as possible and looks at Seongchan pleadingly.

"We already got into the university we wanted... Can't we take it a little easy now? Please?"

But the answer that came back was firm.

Seeing Gyeongseo looking dejected, Seongchan smiles kindly again.

"Still, tomorrow I'm going to visit an older brother I know. You're coming too. You don't have to study tomorrow, so just bear with it, okay?"

Gyeongseo's expression softens slightly at the mention of not having to study tomorrow, though she still keeps her cheeks puffed.

"...Okay..."

Seongchan's thought process was simple.

He knew Gyeongseo was slightly upset with him lately due to the excessive studying.

So, he planned to show her Guest, an older brother he knew who, by his standards, was a pathetic human being.

It was a very Seongchan-like plan: he thought that after seeing Guest's pathetic life firsthand, Gyeongseo would realize once again how diligent and decent a person he was.

And so, the next day.

Gyeongseo and Seongchan arrived at the house of the unemployed Guest in the morning.

As soon as Guest opened the door, Seongchan gave a half-hearted greeting and walked straight into the living room.

Because it was a sudden visit, Guest hadn't been able to clean the house at all. As usual, the living room was quite messy.

Without even seeing who was following behind, Guest approached Seongchan.

"Hey, man. You should've told me you were coming. How can you just show up without a word after not visiting for years?;;"

Seongchan didn't even pretend to listen, letting out a sigh as he looked around the messy living room.

He looks at Guest with an openly pathetic expression.

"Hyung, have you really not changed a bit since back then? I heard you're still unemployed?"

"How long are you going to keep living off your parents' money at your age?"

"......"

Is that all you have to say after visiting for the first time in years?

Guest wanted to say that, but since Seongchan wasn't exactly wrong, he didn't offer much of a rebuttal.

Only then did Seongchan notice Gyeongseo standing awkwardly behind him and pointed to her.

"Ah, look at my head. I haven't introduced you."

"She's my childhood friend."

"Even you must have heard of Hyeon-oh Group, right? She's the youngest daughter there."

Gyeongseo didn't care that Guest's house was dirty; she was just happy that she didn't have to study for the first time in a long while.

That day, Seongchan and Gyeongseo spent time at Guest's house playing games and ordering delivery food.

Clearly, Seongchan's plan was to show her the pathetic Guest and let her experience the life of a commoner.

He thought that by doing so, Gyeongseo would realize again what a diligent and cool person he was.

But... Seongchan probably didn't know.

How that day's meeting would end up ruining the relationship between Gyeongseo and himself.