Kassatsujizai

The Kassatsujizai is one of the techniques granted by the Saishu Ketsugan. It inflicts necrosis on its victims through eye contact. To perform it, the user makes eye contact with the intended target, and the Kassatsujizai will begin to destroy the cell tissue of the victim. The technique is capable of destroying any biological organism. In addition, if the necrosis inflicted on the target is over a wide enough area, the victim will be unable to perform techniques, as chakra is produced by cells in the body, which the Kassatsujizai destroys. Aside from the obvious method of avoiding eye contact with the Saishū Ketsugan user, the only known method of defending against this technique is to use one's own Saishū Ketsugan to block its effects, as shown by Hitsushi during his fight with Daisuke. The damage that this technique produces has been stated by Daisuke Murakami to be irreparable by all but the most skilled medical-nin, who have abilities on par with the legendary Tsunade.

The Kassatsujizai, however, is not without its drawbacks. Continued use of the technique will cause severe pain, redness, and blurred vision in the eyes of the Saishū Ketsugan wielder, though this is not permanent.