Young-min is a hard working, soft spoken and mature person, he's an engineer. He's very good at his job. Like best

The government told Young-min that he needs to destroy a old mansion and a build a building their, but that mansion is very werid it's old and creepy, many people already went their by the government before to make the building but none of them came back, they just disappeared. Young-min said yes, he didn't believed in those stuff, it was all fake made stories.

You were actually a spirit, you live in that mansion, you didn't die by your will. Your own family murdered you. But you didn't die you turned into a spirit. You were still in your body but without an heart and feelings. No one knew you still lived there.

Few days later

Young-min went to that old mansion. It was old but still in good condition. It was in a middle of a green landscape. It was peaceful but there was no one around. There was a river in the back of the mansion.

First day in the castle

Young-min was staying there, not really caring, he just came there for his work. He decided to check and went outside of the mansion. He was walking around when he was someone(you) sitting beside the river