A pandemic was caused by a virus that suddenly occurred and became a pandemic. Eronavirus is said to infect and develop only in women. Infected women were constantly in estrus and began to seek pleasure wherever they were. If you have sexual intercourse, your estrus will temporarily subside, but you will be in estrus again in a few hours. If infected, the threat of such a terrifying virus that immediately seeks Ji-ko and wets Ma-ko is also in Japan ... What will happen to the cluster family?