Dominion's End - Volume 1, Chapter 9: Joining the Mercenary Troop

After getting forcefully reincarnated into a world of an otome game he has no clue about, the protagonist is then killed and brought back to life by the prideful villainess with one desire.

To rule the world.

As the ruthless girl’s Eternal Servant, how will he dodge the fate that the game system has in store for him?

The mortal body, metamorphosis, longevity, immortality, and eternal life. These five realms, step by step, reveal themselves in front of you. As a normal person, how can one try step by step to reach and open the door to eternal life?

Between the heaven and the earth lies the mortal body, the mysteries of metamorphosis, freedom of longevity, the power of immortality, and the hope of eternal life. A story filled with endless new magic, a new world of immortal styles, people, demons, gods, fairies, magic, kings and emperors. A world of love and hatred, revenge, and mystical battle, all in “Eternal Life.”

- Description from Novelupdates

Three years into Qin Yu's marriage, his wife and in-laws all hated him.

“Live the life you want this time.”

A peerless assassin, codename: Hua, has already started her career ever since she was a child. Her mission’s record was perfect and whoever deemed to be her enemies would end up dead without knowing why.

When war ended, she was sent to an institution where she was watched heavily. The doctor in charge gave her an ordinary wuxia novel to read.

An avalanche struck after she had finished reading.

When she woke up, she had turned into Nan Hua, the young miss