YuYu Hakusho, Volume 9 | Yoshihiro Togashi

Dr. Ichegaki's ultimate biological weapons are in the ring, but Team Urameshi is suddenly having a severe attack of conscience. After Dr. Ichigaki implants blood-slaver nodes in the brains of Master Mitamura's martial-arts students, Yusuke and company just don't have the heart to conduct their demon-slaying business as usual. Rated for teens.Meanwhile, Genkai formally reveals herself to Yusuke and gives him the final test to be the sole heir to her formidable technique--a concentrated ball of aura!