Novel Dohyun

Idk why others labeled him as red flag. But I read the novel and finished it already. And I don't remember him being one. Idk if it's because I just used google translate. lol
Sure, he has his own issues but Wooyeon later admitted it that it wasn't just his(ML's) own fault. It was due to certain circumstances. Dohyun has been genuine to him. Yes, he hid a lot from him because of his insecurities but ALL the things he did with Wooyeon were sincere. Even as a his tutor, he was even looking forward to the hours he will spent with him. Yes, he was full of guilt because he had to report to Suhyang(MC's mom i honestly don't know if I got the name right) everything but I think it was just right as the parent who's been paying you to report what was going on with her son. The mother and son, if you think about it, got a very awkward relationship. His mom is overprotective and is bad at expressing herself. It's like those love interests who are bad at showing their affections and often misunderstood(this time in the body of a woman lol) I wonder how she treated her partner that it even extended to SeonWooyeon lol.
ML as manipulator? Idk if you trying to analyze everything then used your maturity to your advantage can be called as manipulation. Dohyun matured at an early age, he did his best so he will be chosen for adoption. I believe him having the maturity and using it to his advantage is very normal and human. It's not like he had to step on someone using those qualities of him. Yes, he faked his smile but still never he had ill intent unto others.
Also, pls I feel him after reading his POV also haha yes we got an ML who cries.