Reincarnated into Hate! Sans

What happens when a chaotic human gets reincarnated into Hate! Sans their favorite but it proves more to be a challenge since they got reincarnated into Underverse where Nightmare is a b--ch, Error isn't forced to deetroy by Fate and more.

But on the plus side atleast they can't get hurt by any physical and magic attacks unless they want to and positivity doesn't hurt them but only annoys them and they still got the memories from their past life so atleast they'll know everyone's weaknesses, strenght, fear and past-

Also their emotions from their past life got muted so now the only thing they can feel is hatred and hate but sometimes they'll be able to feel other emotions but it'll just be very faint-

And they just realized that they're OP since nothing can hurt them, positivity doesn't hurt them and they can also serve as a power boost for Nightmare- so yeah-

And what happens if they meet Nightmare but not as Hate but as another form that they gained from a diety who reincarnated them as a gift.

Will Nightmare notice that they're not what they seem or no?

Will Hate join the Bad Sanses?

Will Hate's secret be revealed?

Will The Star Sanses find out about them?

Wiill they interfere with the original storyline in Underverse?

Will Hate help Cross restore his AU?

Will they cause chaos for everyone?(Spoilers: They do-)

Will Ink have trouble dealing with Hate?

Will Hate hold back their true potentiel from everyone?

Find out in this book!

Ps. Hate does not have any gender in this story so their pronouns will sometimes be He/Him, She/Her or They/Them.