I'm trying to find this manga I read once but I can't find it anywhere. It's about this guy who visits a prostitute but she's not really a prostitute and they end up having a relationship. The guy's mom finds out and gets pissed so she traps him in the house and takes away his clothes so he can't leave. The girl ends up sticking up for him at the end and saves him from his mother. Does anyone know what it's called?