In Chainsaw Man Chapter 70, titled "Pinch," the International Assassins arc concludes as the Cosmos Fiend traps Santa Claus in a state of mental overload, forcing her to only say "Halloween". Makima subsequently executes Quanxi, Cosmo, and Tsugihagi, reinforcing her absolute dominance and highlighting Kishibe's deep distrust of her power. Read the full breakdown of the chapter at Chainsaw Man Wiki .