Ritsu is having a slightly rough time of it, since as athletic as he is, it still doesn't change the fact that his weapon wasn't built to kill or to even cause physical damage. The blasts from his guns may be able to slow the zombies down or knock them back, but if he wants to incapacitate, cripple, or do worse to them, he's stuck resorting to brute force - smacking them with the guns themselves, crushing them underfoot... It's pissing him off. It doesn't help that the longer he stays with his Catharsis Effect activated, the more of a toll it takes on him. At the moment, the black beneath his skin hasn't spread far beyond his arms, but he'll have to try his damndest to keep his emotions in check for it to stay that way.

So, for the time being, he decides, "fuck it." He can continue playing exterminator later if need be; for now, he needs a break - just enough to let his Catharsis cool down for a bit. So he decides to play the evasion game, deftly avoiding zombies as he opens a path for himself with a storm of bullets.

Then he sees someone mowing through the zombies, and his eyes briefly widen because he recognizes that face, but the expression on it is completely new - and uncharacteristic. "Yamamoto...?"