Kouta (Shinya Hashimoto) is the leader of Zero, the smash-hit pro-wrestling organization. He's having a house-warming party at his brand new palatial palace when things get out of hand. Ichijoh (Nicholas Pettas) has a grudge against Kouta and decides to crash the party. Ichijoh provokes Zero's young wrestlers into a fight. Things get heated as Kouta erupts into a rage of anger: the skirmish escalates into a tremendous battle royal that leaves the mansion in shambles. Kouta's wife Asami is injured in the assault and must seek medical treatment that backfires and causes her to contract a strange disease that turns her into a zombie mermaid! Kouta needs to rebuild his house and save his wife.