Fantasy: Sign in at the Beginning, the Origin of Everything!

[System + invincible all the way + mysterious background! In the early stage, he likes to watch a little drama, but in the middle and late stages, he kills decisively. Mu Chen, a guy who got reincarnated inexplicably after being drunk! When he was reincarnated, his luck value was full, and he was reincarnated into the Mu family in the Burial Immortal Realm! Become the young master of the contemporary Mu family! Mu Qingxue, a peerless empress who was cold on the outside and shady on the inside, was besieged by the three demon emperors and died! She retained a trace of her soul and was reincarnated. In order to regain her strength as soon as possible, she used the treasure of reincarnation to join the Mu family, the strongest family in the lower world, and became the princess of the Mu family!