Juu – Ninpou Makai Tensei

this is the latest story of the famous “ninpo-cho” series of yamada fuutarou. it begins in 1638, during the shimabara rebellion, where a powerful swordsman who should have died is instead transformed by an arcane ritual into a demonic creature. as time passes, more swordsmen facing death go through this transformation. what could these new, demonic swordsmen be planning?