Violate Mind

Taku had a quarrel with childhood friend Minako, but after sneaking in her room to make amends, he witnessed a shocking scene.
Soon Taku went to study in Tokyo. Several years later married Minako stays at Taku's place during her stay in Tokyo. Her panting voice does not let him sleep. He decides to apply to her a hypnosis technique he picked up from a certain web site...

[From vndbreview]