Heroes of the Imjin War is a Manga/Manhwa/Manhua in english language, Action series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.nl fastest updating comic site. The Summary is

Two centuries after the establishment of the Joseon dynasty, a long war breaks out because of the Japanese invasion. Four beings, both human and celestial, struggle to correct the balance of the universe: Eun-dong, a boy who lost his mother to the war and is now searching for his father; Tae-eul, the Angel of Death who seeks to solve the mystery of the lost souls, the honorable 800-year-old Tiger Heuk-ho, and the nine-tailed fox, Ho Yu-hwan. This is their story.