A racist corporation is looking to expand its territories of domination and for that it needs to destroy the Yakuza mafia. It is then that a transgender woman suddenly appears willing to defend the Yakuza tradition.
By chance, Anna, the mistress of gang leader Masakazu Jagawa, ends up living together with member Sho Nagasaki. Anna refuses at first, but eventually love begins to grow. However, everything was a trap for the destruction of the earth by the creator Darkness of Love...