Manga artist Akari Minase, unable to keep her room tidy, purchases a helper robot named Satomi. Days later, after an update, she discovers the android can perform erotic acts. With expressionless fondling, it triggers intense squirting; in "big sister mode" it delivers maternal-like lesbian play; in "M-girl mode" it relieves stress with strap-on punishment. When paired with a real woman, the experience intensifies, amplifying the sensation of being with a true robot.