Hell's Paradise Vol 12

Hell's Paradise Vol 12 by Yuji Kaku. An Action manga rated Mature, published in English by Viz Media in 2022.

Gabimaru the Hollow, the deadliest ninja of his village, is on death row when he's offered a pardon: travel to a mysterious island and bring back the elixir of life. Accompanied by his executioner, Yamada Asaemon Sagiri, he lands on an island full of monstrous creatures and rival convicts.