[Yayumi] Kanojo no Hahaoya to ℍ Shinai to de Rarenai Heya ni Tojikome Rareta [MTL]

Minato is trapped in a locked room with Mina, the mother of his girlfriend Rena, after a demand makes sex the only way out. Mina’s curvy body dominates the claustrophobic bedroom as she exploits the rule, Minato’s guilt, and their earlier encounter to overwhelm his resistance while Rena remains away at work. Shaded monochrome art, cramped panels, and the command to “forget everything” sharpen a tense mixture of coercion, infidelity, guilt, and reluctantly admitted pleasure.