
i really feel like donald na is actually stephen i mean hes good a studies and grey caught his attention when he was trying to solve a problen like 40-80 chapters ago

From what I can remember, Donald started his activity in high school, and by then Gray and Stephen were already friends. After that, Gray said in a memory (or at least we were shown it) that Stephen was in the hospital, possibly in a coma.
Moreover, Gray expresses no concern that he doesn't know where his best friend is. I think since they were so close, even if Stephen disappeared, Gray would keep trying to find him. If he doesn't try, he obviously knows where his friend is. And in my opinion, he is still in the hospital.
But I can be wrong because your theory is quite popular, so I wouldn't be surprised. ┑( ̄Д  ̄)┍

This was exactly what I was originally thinking too but after rereading, Stephen and Gray became friends in MIDDLE SCHOOL if I’m right, and then Donald’s debut was in high school, meaning he could’ve long woken from his coma and started fresh somewhere else (hopefully nothing like losing his memories happened haha because I’d cry if that’s the case)
Conclusion, the theory actually holds up pretty well from what I’ve read and if I’ve gotten anything wrong please correct me <3

Ah, and for knowing where his friend is:
After all the trauma of thinking the only person that cared for him was dead, he left without looking back. Personally I feel like he blocked out that trauma (it resurfaced in the roof fight and finally was cleared with big ben’s help) but because the trauma was blocked out, another trigger would likely be seeing Stephen (because he blames himself for what happened, Stephen took the blunt of everything that was actually meant for grey) so, all of this is just theories haha, we will see what the truth is eventually :3

About Gray not having interest in knowing where Stephen is, first of all, I think it's because of the trauma, and second of all, a nurse said in his memories that Stephen's parents moved because they wanted get away from that place and those memories, amd they took Stephen with them, so there was and there isn't any way Gray could know or find out where Stephen is.

I freakin love the theories you all made it would be really interesting if that happened. But from what i see Donald na and Stephen ahn are 2 diff. Persons. Like.. i love how the author made donald and stephen so similar. But there was a chapter of a brief past of donald as a child in a ragged clothes. And isn't Donald na recruiting everyone when they all are in middle school from what the throwbacks show? And arent they highschool students now?
i know you guys saw roach bae with that blush