@ry3te4
Because you have it backwards. Misha is the side character, Aria is the female MC. Just because Misha was the first one introduced doesn't make her the female lead.
And most of the hate on Misha is because she stayed with that jackass hero when Magnus left, and didn't lift a finger to stop any of the shit he and the others in that party did. If she was afraid of being ostracized by the "hero", she could have left and joined Magnus at literally any point if she needed a party. I doubt he would've turned her away if she had.
Then in this chapter she acts like she still had some kind of chance with him until Aria made it clear she didn't.
Bottom line is if she was in a place where she could've at the very LEAST said something about Hero-san's actions it would've shown she had some kind of moral compass, but all she ever did was look the other way, feel bad about it, worry about Magnus or hope he would come back to them.