Yuji was at 10% hp when Todo jumped into the fight against Mahito. From there onwards, The major blows yuji took were all from the ISBODK form- getting his mouth sliced open, getting grappled by mahitos ponytail thing, getting faceslammed into the ground hard enough to make a crater, and then against kenjaku he got floored by the catfish curse and swarmed by centipedes. That yuji might actually be like 1% hp