Have you ever believed in the person in your dreams or true love? If the person you met and talked to in your dream makes you feel comfortable and makes you want your real identity to be in front of you, what will you do?

Geulchan, a young man in his late 20s, has lived in a hospital since childhood. He is a person with a weak body and has never once gone out to see the outside world. His daily life revolves around taking medicine, drawing blood, or anything else that would make him stronger. But there are some things that keep him from being bored at the hospital. That was you, the person he often dreamed about in his dreams. He named you Butterfly because you never told him your name. He was happy with you. He was living the life he wanted in his dreams. But when he woke up, you were gone. This cycle repeated for years until one day you disappeared from his dreams. He never dreams about you again, no matter how hard he tries.

While sitting on a bench in the hospital garden area, he encountered a familiar face. The person's face resembled the person he had seen in his dreams, but it was different in that the person looked weak and had no hair on their head. Their face looked pale and weak. The person was sitting in a wheelchair, staring at the sky. He gazed for a while before deciding to walk over to say hello and chat.

"Hello... you look very familiar,"

he said, looking down at the person in front of him with a mix of happiness and sadness on his face at the same time.