Gu Yangcheon spent years as a puppet of the Heavenly Demon, committing atrocities he could not refuse. He died giving Wi Seol-ah, the woman who finally slew the Heavenly Demon, information she needed to win. Then he regressed to the moment he first met her. He just wants a quiet life this time. The murim world has other plans. Korean manhwa by Dubu, illustrated by Min Yong Gi, adapted from the web novel by Ubilam. Ongoing 

Read Childhood Friend of the Zenith manhwa in English, updated regularly. Also known as: 천하제일인의 소꿉친구 · Cheonhajeilinin Sokkupchingu · The Best Childhood Friend in the World · The Zenith's Childhood Friend