the evil giant alien, grammarian star, asayo mizuno.

The Grammarians, who are looking for energy exhausted by the stars of Grammaria, plan to bury Earthman! Analysis of the battle against Earthman with energy thermography shows that there is a concentration of energy in the crotch, and earthman is vulnerable to female pheromones! After finding that Earthman's other weak point was the planetary garrison, Grammarians are now in sync with his body and attack Earthman. Grammarians have decided to deceive Earthman, who was weakened by female stimuli, until it is completely unobtrusive. [Woman Astronaut HAPPY END]