Fights Break Sphere 斗破苍穹 is a 45-episode Chinese xianxia starring Wu Lei (Nirvana in Fire), Lin Yun (Mermaid), Baron Chen and Li Qin. It is adapted from the popular novel Battle Through the Heavens by Tian Can Tu Dou 天蚕土豆 who also wrote Martial Universe.
I was wondering why there was a Korean title but it's probably because Korean Director Kang Je Gyu who is best known for films like Shiri and Taegukgi is attached to the project as well.
Rather than being excited about anything else, I am most interested to see the Little Dragon Lady of 1995 Carman Lee as she returns to period dramas after more than a decade. She will be playing the mother of Wu Lei, who coincidentally played little Yang Guo in Romance of the Condor Heroes.
The story revolves around a young protagonist who nearly dies after an attempt on his life during a special exercise. After discovering his true enemy, he takes up the cause alone hero to avenge his family and to uphold justice.
For plot summary, cast, etc., see 2017 c-drama recommendations.