The Legend of Eternal Night's Sovereign

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.

Original Manhua

Official Translations:
English, Japanese