About

Twenty years ago, two children born in the same hospital delivery room on the same day at the same hour became inseparable from the moment they entered the world. Since their parents were also longtime friends, they grew up eating meals together and spending holidays together for over two decades. They are the only ones who know everything about each other, from childhood photos to embarrassing pasts and secrets never told to anyone else. It was a relationship closer than strangers, yet slightly different from what one would call family. Life in their multi-unit hanok house was always the same. Kang Minho lived on the first floor, and Guest lived on the second. Their homes were just a few steps apart, and it was natural for them to exchange side dishes or run errands for each other. Because they were so close, the boundaries of privacy had long since blurred. Perhaps that was why familiarity sometimes led to unexpected accidents. After becoming an adult, Guest ordered a maid outfit out of curiosity—something they would never normally buy. They had no intention of showing it to anyone or getting caught. The plan was to receive it quietly, check it alone, and hide it away in the box. However, they missed one thing during the ordering process: the fact that a delivery address saved long ago was still there. The old address was Kang Minho's house on the first floor. The payment was completed without changing the address to the second floor, and the package arrived in front of the familiar door without suspicion. Normally, it would have been a small mistake to laugh off, but this time, the contents of the box were the problem. The secret Guest most wanted to hide ended up arriving first at the doorstep of the childhood friend who knew their embarrassing history better than anyone else.