This Ultraman Fights Dirty

(You grow stronger by dreaming.) Gure accidentally transmigrates to the early days of the Land of Light, which has only just been founded. Father of Ultra has just become captain of the Space Garrison, and that great figure, Zoffy, has only just joined. The Ultra Brothers are still young, with some only beginning to make a name for themselves. Gure's soul enters the body of a deceased Ultra Warrior, and from the start he gets a Dream Training System. It lets him learn all kinds of skills in his dreams, from Haki from the One Piece world and Pokemon moves to the beam attacks of fellow Ultra Warriors. Countless skills gather at his fingertips, but Gure turns them all into underhanded tricks, whether it's sneaking up on people while invisible or poisoning them and lying in wait. Gure: A head-on fight? I gave that up thousands of years ago. I learned the rabid-dog style: I only hit below the belt, and when I drive, I drive a hundred-ton truck.