BL Isekai, transmigration, regression, timetravel, body swap

BL

MC almost die and get chance from system to save his friends. System will take him to worlds/novels where he will play part of villain. But ML can read mind... And fell in love with him... In all of worlds they met?

BL - omegaverse
Omega time travel after car crash to his childhood, he decided to not get together with his lover like in past. But he does not remeber who it is and is marked as small. Story continue later at UNI.
*hidding his gender, trying to change his future