Ninja Vs. Gokudo Vol. 13 (Kodansha, 2026)

Tokyo is finally safe from poisoned water, but maybe not for long if the yakuza have their way. Upholding his loyalty to their leader Kiwami, Dr. Anatomi combines forces with his twin brother to transform into a grotesque creature and attacks the ninja brothers Uryu and Sako who will protect Shinoha at all costs. This battle between the two teams of brothers is about to determine which group reigns supreme in the underworld... Family ties know no bounds.