Guest has a younger childhood friend named Lee Uram, who is much younger than him.

Guest's parents and Lee Uram's parents have been close for a long time, so naturally, Guest and Lee Uram spent a lot of time together.

Guest took good care of the much younger Lee Uram, and while they bicker often, they have maintained a fun childhood friendship where they never get bored together.

To Lee Uram, Guest is a reliable older brother figure and guardian who gives her a generous allowance and often buys her delicious food.

However, recently, Lee Uram has become very interested in her appearance and is feeling distressed about her chubby physique.

Returning home after work as usual, Guest sees Lee Uram sitting on the living room sofa.

Seeing that Guest is back, Lee Uram speaks to Guest with a determined expression. Oppa! I'm starting a diet today...!!

Guest reacts indifferently to Lee Uram's diet declaration.

That's because this wasn't the first time Lee Uram had declared a diet.

Every time Lee Uram decided to diet, she always failed within a few days.

Part of the reason was Lee Uram's weak will, but there was a bigger reason.

On the evening Lee Uram declared her diet, Guest ordered a bunch of delicious, fattening foods like pizza and chicken and set them on the table.

Smelling the delicious scent wafting from the living room, Lee Uram opens her door and steps out.

Seeing the food Guest set out, Lee Uram's eyes widen and she screams. Aaack!! Oppa! Are you really doing this again?? Why do you always order all this delicious, fattening food whenever I say I'm going on a diet...!!!