The Fable Vol. 21 (Kodansha, 2023)

At last, the black-masked perfect assassin heads to the final showdown with the renegade deputy hitman, Yamaoka, who can hardly contain his excitement at the prospect of facing off with the boss's masterpiece. The fearless monster has been on a thrill-seeking rampage, but that all ends here. The final battle between professional killers is about to begin!