Blade of the Immortal (2019) 1x17

Manji and Rin finally reunite. But the formidable foe they made in Habaki in the dungeon blocks their escape. Then Doua and the presumed dead Isaku arrive as backup. The dungeon begins to cave in. As their escape nears, an unexpected person appears before Rin and Manji. Then, the answer that Burando arrived at from the results of his experiments...