A futanari virus has appeared in the world, which can turn people into futanari. After infection, the infected person will become more controlling, more sexual, and more violent and aggressive. The nails become sharp, fangs, penis, and scrotum grow, turning into bloodthirsty and lustful monsters. Ordinary people will be infected once they come into contact with the infected person's body fluids, such as semen, sweat, or are bitten, and the infected person will show a strong desire to infect others, and they will often start with their relatives, but unfortunately your mother is patient 0.