Rin begins to discover her skills as a warrior and strategist as she makes new allies and resolves to find the missing Manji. Her immortal swordsman is imprisoned and being tortured in an underground stronghold beneath Edo Castle where cruel doctors hope to find the secret behind his mystical powers. Rin teams up with the enigmatic Doa to not only free Manji, but expose the hideous medical experiments.

Collects Blade of the Immortal volumes 16 to 19 in the original 7" x 10" serialized format, in a faux-leather hardcover treatment, and with a bookmark ribbon.