Makki, a female member of the Space Defense Force, infiltrates an alien secret base with her partner robot "Hans," acting on intelligence provided by her senior, Elra. However, the mission is actually a cunning trap set by General Pristor. While the general attempts to brainwash Makki, he forces the already brainwashed Elra to perform lewd preparations on her. A sudden incident occurs inside the prison cell, putting Makki in grave danger. Then, the brainwashing fluid is injected into her body...!