Introduction: The world of YASAHI was originally like ours until 2009 where strange beings called rudesk came about. Rudesk have the shape of us human but with red skin and some strange red aura that knocked normal humans unconscious. Rudesk are evil in nature for they kill everything that goes againt them. They blame human for eqrth only being a .7 civilization. Along with rudest came things called bliss techniques. Bliss techniques awakened in 9% of humanity and it is now their job to protect humanity from rudesk.There are only 1000 s ranks in the world. Our mc has the technique butcher also known as THE WEAKEST TECHNIQUE RECORDED making him the only G rank saviour. Read about his quest to eliminate rudest and save humanity....