Looking for cold hearted main characters

[Zenbonzakura]

I'm looking for a manga where the MC starts out as a good guy.
To simplify (Good to Evil)

 

[Syanindita]

@Zenbonzakura
https://mangadex.org/title/35371/mitarai-ke-enjou-suru
https://mangadex.org/title/51587/ijimeru-aitsu-ga-waruinoka-ijimerareta-boku-ga-waruinoka