Taehyung is a half-tiger man who lives in the forbidden forest. In the forbidden forest there is an old settlement where half-tiger humans live. They live in secret from humans. The tiger people are hunting for the red stone that is in the 7 tiger human girls descendants Shin, the oldest who was born 17 years ago. The red stone is used to transform into a complete human. Anyone who has the red stone in they body will become a complete human being. Taehyung decided to look for the red stone.