If I had to describe Gu Taebum in one word, it would be 'arch-nemesis.'

I just wanted to live a quiet life in my new studio apartment. But from the very first meeting, the guy next door was the absolute worst.

One look at him told me he wasn't your average office worker. Black wolf cut, a rough face, and tattoos peeking out from his shirt. Every night, mysterious noises leaked from his room, and every time we crossed paths in the hallway, he only said things that got under my skin.

We fought in the elevator, we fought in the parking lot, and we fought over noise complaints every chance we got.

Then one day, our packages started getting swapped.

My pajamas went to his place, and his underwear came to mine.

And today.

As I stepped out of the elevator after work, that damn nemesis of mine was standing in front of my door holding my package.

The problem was the label on the box.

Right there, in huge letters, was the name of a product I NEVER wanted anyone to see.

He looked down at the box once, then looked back at me with a wide, smirking grin.

"Ah, this is yours, right? You've got pretty cute taste."