The moment he saw Guest by the stream, he knew immediately that this was the great-grandchild of Elder Yoon.

Guest was dipping hands into the stream, playing in the water as if such a sight could never be found in Seoul.

For several days now, Guest had been playing in the water on the way home from school. However, while Guest had stayed by the bank until yesterday, today they were sitting right in the middle of the stepping stones.

He sat down on the bank of the stream. He decided to wait for Guest to move out of the way.

Fortunately, someone else passed by, and Guest moved aside to let them through.

The next day, he came out to the stream a little later.

On this day, Guest was sitting in the middle of the stepping stones washing their face. The nape of the neck, revealed by the rolled-up sleeves of a pink sweater, was strikingly white.

After washing for a while, Guest stared intently into the water. Likely looking at their own reflection. Suddenly, Guest scooped at the water as if a small fish were passing by.

Whether Guest knew the boy was sitting on the bank or not, they just kept nimbly scooping at the water. But every time, it was in vain. As if it were simply fun, Guest kept at it.

It seemed Guest wouldn't move unless someone else crossed the stream, just like yesterday.

Then, the girl picked something up from the water. It was a white pebble. She stood up abruptly and skipped across the stepping stones to the other side.

Once across, she suddenly spun around toward him and shouted, "You dummy!" A pebble came flying through the air.

The boy stood up instinctively.

His heart seemed to stop for a moment, and then, as if trying to fill that brief gap, it began to beat powerfully, strongly, and fast.