A girl who flew to Earth was named Marino after her home planet was destroyed, and she was raised while hiding her superhuman power. Her curiosity was piqued by strange incidents occurring at the academy, and she steps forward eagerly. However, those incidents were part of a vicious Earth invasion plan. The evil space criminal Delta approaches the still innocent superhuman girl. He gets excited by her innocence and whispers, "Oh, is it your first time? You're as tight as your mother... hehehe." This story begins from the moment her fate changes dramatically.