I am trying to identifying this manga for years now along with my friend

[Stonygolf]

Does anyone has any idea about the manga where at beginning the heroine is bedridden, traumatized by her past (probably r*ped or something like that) and the protagonist regrets because of his uselessness thus he signs a contract with a demon to redo their youth? Thank you very much for answering!

 

[Wickedhero]

https://mangadex.org/title/17804/hensoku-kei-quadrangle
Is it this one
@Stonygolf

 

[Stonygolf]

Yes this was it! Sorry for the late reply since it is night time in my place and I have to confirm with my friends as well, thank you very much!!!