Shujinko joined the Kang Temple in China at some point in the past, becoming a master within its walls and was eventually entrusted with the protection of the Kamidogu dagger of Chaosrealm by the thunder god, Raiden. Shujinko would perform this honor for many years, until he was visited by the cleric from Chaosrealm, Havik, who corrupted him with Chaosrealm Kamidogu and possessed him along with every monk in the temple.