I don't think they're twins, I think the brother is keeping watch of him since he is a little crazy. His face in certain panels reflects how he's trying to be perfect and crafting a perfect relationship but has deep thoughts of possessiveness among other feelings. His brother showed up at the school, and all of a sudden the ML asked MC "Why do you like me?" It looks like either the MLs brother either knows about his brothers tendency to obsess, or his truly wealthy lifestyle- OR he's from one of those wealthy families that in their constant butting in, vets whoever the ML speaks to.
Which is probably why we see the ML take the MC to a fancy restaurant and ask about his goals. ML wants to probably prove his brother wrong that MC only likes him because he's being fake and acting humble/ acting like he doesn't have the means. Though I feel MC already knows he's rich.
Am I the only one who thinks it may be the MC who isn't aware that he himself has done bad things or been evil? And in the same light, maybe before the world went to hell, the ML was a person who was considered bad. I get the vibes others are getting from the ML towards the MC especially when his eyes lose the light in them.









Did the MC figure out that the ML was the same guy in the wheelchair from the other reality before he died yet?
He did
Thank you!! The wait for the reveal was killing me so I decided to let it marinate, I'm so happy he knows!