【No system + invincible + cool story + no heroine + fantasy】
After Chen Guanlou gained immortality, he got a stable job as a jailer in Tianlao and started his days of slacking off at work.
In the long years, I watched him build a tall building and then it collapsed. I watched him ascend to the throne today and become a prisoner tomorrow. I watched his family become rich and powerful and then he exterminated his three clans. I watched him become rich and powerful and then his country was destroyed and his family was ruined.
What changes is the years and life, but what does not change is the immortal years. Chen Guanlou outlasted the masters, the great masters, and the big guys, and finally became an invincible existence.

【无系统+无敌+爽文+无女主+玄幻】 陈观楼获得长生后，就在天牢谋了一个狱卒铁饭碗，开始了每天上班摸鱼的日子。 在漫长的岁月中，看他起高楼，看他楼塌了。看他今朝荣登天子堂，明日做那阶下囚。看他家族富贵，看他夷三族。看他王权富贵，看他国破家亡。 变化的是岁月人生，不变的是长生岁月。陈观楼熬死了宗师，熬死了大宗师，熬死了一个个大佬，终究成为无敌的存在。 主角：陈观楼

武道长生，不死的我终将无敌

Martial arts immortality, I will eventually be invincible

martialartsimmortalityiwilleventuallybeinvincible武道长生，不死的我终将无敌

Series of 戒界