Grayson has a problem. He wakes up in a complete alternative world that is covered in wilderness, having no idea where he is or how he got there. Injured and weak, he thinks he's going to die in the middle of nowhere. That's before a beautiful girl comes along, hanging over him with curiosity.
Realizing that this girl lives in an ancient world where wolves and men are family with one another, he is determined to get back home. That's another problem. How?
That's where the girl comes in. They go on a journey to the Cave of Wonders, hoping to find a way from the Spirits to get Gray back to Earth.
Waking up in the body of a 6-year-old boy a few years before Cintra is destroyed, Madara receives a system that gives him the ability to gain the powers of Uchiha Madara.
[The peak of Uchiha Madara's system is before he becomes the ten-tails jinchuuriki.]