The Young Master of the Demon Sect and His Top-Tier Dao Companions

When he was 25, his father left behind a video on his phone, saying he was going to another world. Then he vanished without a trace, nowhere to be seen, dead or alive. Ten years later, Tang Yu was lying in a hospital bed, close to death, when a girl named Nangong Qing came to take him to another world. Only then did he learn that his father really had gone to another world, where he had become the invincible Demon Lord who conquered an entire realm.