Transformation of Karag

At first glance, Karag is an ordinary schoolboy. But behind his unremarkable appearance hides someone quite unusual. Half human, half puma - that is who this mysterious guy really is. Living among people is not always easy for someone like... him. But, fortunately, one day Karag gets a chance to enroll in a unique educational institution. "Crystal" - a school where teenagers can transform into beasts. Maybe Karag will finally be able to make friends? However, someone here is already watching him. Who is it? And why is he doing this? Does this mean that Karag is facing very dangerous trials?
 
Cycle Children of the Forest:
Transformation of Karag
Dangerous Friendship
The Secret of Holly
The Puma's Revenge
The Secret of the Sphinx
Day of Fire
Karag and the Wolf's Trial
Twelve Secrets