[Arujima] Soukou Senki Assault Pink ~Uragiri no Henshin Heroine~

A captured armored warrior princess, a dickgirl, is tightly restrained by a dominant demon girl who revels in tormenting vulnerable captives. She endures relentless stimulation from a piston restraint machine equipped with a vibrator attachment, driving her to overwhelming pleasure and humiliation while she begs for release. The oppressive bondage, forced sexual pressure, and desperate yearning for freedom create a tense, claustrophobic mood as she fades into unconsciousness.