Sleeping Dragon King Chronicles (Unabridged‪)‬

Sleeping Dragon King Chronicles is an isekai story about a teenage boy that was orphaned at a young age, his mother taken away from him by a mysterious shadowy figure. He grows up alone, having a tough time making friends and fitting in at his Japanese high school.

The story starts off similar to that of a slice of life, and then, after first few chapters, the teenage boy gets transported to a new world where he learns more about himself and that he was never fully human.