Zombie Sex and Virus Reincarnation

In 2020, a mysterious virus incident occurred.
The virus nourishes male sperm and propagates in the male body.
People infected with the virus lose consciousness and attack people one after another.
If an uninfected woman squeezes out a large amount of sperm from an infected person, the infected person can be cured, so the hero who has a good personality has started volunteering to fight the virus.​