Mou Hasamazu ni wa Irarenai

Based on the erotic manga by Kaizuka. An alien craft collides with a young woman named Amano Inori. While repairing the physical damage from the accident, the extraterrestrial unintentionally enhances her, granting her greater intelligence, athletic prowess, and beauty, while also drastically increasing her bust size by approximately five cup measurements. Since his mission involves observing human behavior, the alien requests permission to monitor Inori. He remains a passive observer until the day she encounters a male student named Sugiuchi. Upon seeing him, Inori experiences intense arousal. The alien then takes direct action, manipulating Inori's body to override her control. Under this external influence, she is compelled to initiate sexual activity with Sugiuchi.