The Villainess and I, her Zombie

Summary:

[Season 1 – Cranberry]
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?
[Season 2 – Zombie]
He has been granted a second chance.
Thrown right back to when it all began – with the memories necessary to make everything right and the overpowered skill to back up his conviction – how will the protagonist deal with even greater danger than what he faced during the first playthrough?