Bolin Cho was a former US Army Medic. He originally met his childhood love, Jie Lin in the Bangka Lungshan Temple in Báng-kah khu, Taiwan. He eventually married her and immigrated to the United States. They eventually settled in a quiet neighborhood of Philadelphia, investing in real estate and opening a shop in Chinatown.
He had no known magical abilities but was proficient in treating his wife’s many injuries from her duties as a demon hunter. He spoke English, Hokkien, Cantonese, Mandarin and could read English, Japanese, Latin, Sanskrit, and Chinese. He also supported Jie through research and acquisition of artifacts and spell components.