[MIAB-526]

My always-smiling neighbor sister turns into a lustful beast at night, screaming uncontrollably! Her wall-penetrating moans keep me constantly erect - Michi Kitamura

My neighbor, Michi Kitamura, seemed like a kind and gentle woman during the day. As a second-year office worker with no real hopes or dreams, I spent my days listlessly—until she started greeting me warmly every morning and sharing homemade dishes like nikujaga. Her kindness slowly drew me to her, and I began dreaming of confessing my feelings. But one night, I heard strange noises through the wall—her loud, intense moans. Shocked by the obscenity, I couldn't help but cover my ears and jerk off. From then on, her daily greetings were accompanied by brutal, relentless sex. I realized the sweet older sister next door was actually a total cock-hungry freak. That shocking revelation—and the arousal it brought—changed my life forever.