Papa is a Fuma Shinobi ~The Father Who Sacrificed His Body to Demons to Protect His Beloved Wife and Child~

Hayate Takanashi is an ordinary civil servant with a secret he keeps even from his wife and child: he is a member of the government's direct agent group, the 'Fuma Shinobi'. To protect innocent citizens from demons, he fights in the dark of night. However, during a mission, he falls into a cunning trap set by a demon and is captured. The demon uses his beloved family as hostages to force him into submission. To protect them, Hayate accepts the demon's demands and becomes their property. He is continuously violated by the demons, enduring relentless torture and brainwashing. The demons' influence even extends into his private life, turning him into a public sex slave. Despite the degradation, he clings to his love for his family, but the demons' brainwashing eventually breaks him completely. Hayate Takanashi, a futanari ninja, is bound and suspended by numerous pink tentacles in a dark void.