Inexperienced Thai soldiers battle a growing undead menace in this gruesome survival horror. A Japanese military experiment that turns men into monsters escapes containment, it’s up to these troops to save their nation from annihilation.

In rural Japan, the survivors of a tragedy converge and attempt to overcome their damaged selves, all while a serial killer is on the loose.

Based on a true historic figure, Yamada Nagamasa, a Japanese adventurer who went to Ayothaya in the 16th century and became a soldier in King Naresuan's army. After the war in Burma it's restless in Ayothaya, because of a mysterious group of men that terrorizes and plunders the city. Yamada goes after them and discovers that the men are rebelious Japanese samurai. Now he has to fight his own countrymen.

Seki, a young Japanese detective has lost his workmate whom was killed by a serial killer. This weird killer enjoys killing a particular type of person - transsexuals. When the killer escapes to Thailand, Seki follows and meets Lily, a cabaret showgirl who her best friend was murdered by the same killer.

Shouichi encounters his old friend and caretaker Dr. Higashi Kunieda. Dr. Kunieda, a friend of Yoshihiko Misugi, took care of him while he was hospitalized with amnesia. After catching up on a year of separation Shouichi abruptly leaves to house to fight an Unknown as Agito Burning Form. Unfortunately, after the Unknown flees Shouichi loses control of himself and attacks Dr. Kunieda, who followed Shoucihi and watched him transform. Dr. Kunieda managed to calm him down but Shouichi becomes to afraid of himself and runs away.