Ace Brown a teenager in high school is killed by a mysterious woman in the human world and gets reincarnated to a foreign world. His entire family and his girlfriend Clara Smith go missing. Ace gets reincarnated as an 12 year old kid and spends the next 5 years training with the village elder in the mountains. He leaves on a journey to find answers to many questions. Why was he reincarnated ? Who was that woman who killed him ? What happened to his family ? And why was he reincarnated as a 12 year old kid ?