There was this bl I started reading a while ago... It's a guideverse, but the mc(bottom) was transported into this book he was reading. The ml is tall and has short black hair. I remember that the mc signed a contract with him where he is teleported to the ml whenever the ml wants.
Im sorry for the lack of solid details... I just recently remembered this one...
Maybe this one
https://www.mangago.me/read-manga/creating_a_hidden_ending/
Is she really an illegitimate child? I’m already mad at the father for abandoning her, but please-
She reincarnated after being killed by her stepfather. The last thing she needs is to be completely ignored by the man who raised her…
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