King of the Eternal Night 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.cc fastest updating comic site. The Summary is

Lin Xitang chances upon an injured young boy while out on a mission around the nevernight continent The boy’s name is Qianye, and he’ll be Xitang’s son if he survives the Netherworld training camp An exciting story following a boy working to graduate in order to escape the eternal night continent King of the Eternal Night, The Legend of Eternal Night’s Sovereign, 永夜君王