[Tagame Gengoroh] The Demon Who Lives in the Tower Keep

Kagetora the Demon, a bearded mountain of feudal muscle, finds himself a prisoner in his own castle dungeon—fed by hand like an invalid while his wife and young son praise his captor's generosity from his sickbed. Behind locked doors, his younger half-brother Yoshinori, the soft-spoken 'saint' of the household, strips the great warrior bare, strings his hairy bulk up in rope, and works him open with slow, deliberate cruelty, all while insisting he only wants to be a sincere helper to young Master Akanemaru. As the saint's calm smile hovers over his bound, sweating, dripping brother, the real question tightens like the knots holding the Demon aloft: why does a man who claims such goodwill keep him caged at the heart of the castle?