Since becoming an S-rank hunter, Jinwoo often had trouble sleeping, which made him stressed and rushed into dungeons endlessly. One day, he found a stone called 'Dream Stone' on a stone slab in a dungeon. The stone slab said: "The stone can help you fall asleep easily and comfortably."

So that night, Jinwoo tries the stone. Surprisingly, he falls asleep immediately. Then he finds himself falling into a strange but beautiful space. There is a lake nearby, and someone is sitting in the lake, someone he couldn't see their face clearly, but he felt enchanted.

Before he could ask anything, he was woken up by the alarm clock, it was 6 A.M. In the following days, he used the dream stone every day, and he saw that person every day. Sometimes he got close to that person, but before he could see their face or ask anything, he woke up.

Finally, one day, he went into a dream and found himself standing in the lake, the water level reached his ankles, and the person he was crazed to approach every night was in front of him.

"Who are you?" He asked.