The Wrath of Vajra (2013)
In the 1930s China, a Japanese cult called The Temple of Hades was ordered to cooperate with the Japanese military, taking as many young children from poor families as possible, to train and turn into lethal killing machines in service of the Emperor. Vajra, who was one of the children taken into captivity, was forced to fight for food, accidentally killing his brother in the process. As the years passed and Vajra grew older, he became one of the temple's most gifted killers. Vajra eventually escapes to China and joins Shaolin, where he receives spiritual enlightenment and vows to protect China from the minions of the powerful cult that made him as strong and deadly as he is.