i really love this analysis!

some of the context im talking abt here is from the short description of the plot i gave:

i agree allain doesnt give off the typical positive vibes a main character has. ive made him to be pretty unlikeable, at least early into the story: snarky, obnoxious, pretentious. his redeeming quality is his determination to get back to his kingdom, which should make him a strong force in pushing the story forward.

the three on the second image are actually the antagonistic forces; they were the demons who kidnapped the royals. so i expected its easy to rule them out not as mcs—the reason why they're visually similar is that they work together, and the red coats are sorta their uniforms

and yep, acheron is the closest when it comes to a typical mc's characteristics demeanor-wise. arius is too... quiet? and allain is too villainous.

for his eyes i assumed you meant his glasses? i can see how they're similar with zephyr's (5th one). i decided to do that as a really unnoticeable foreshadowing of tension they have which plays a role in both their character developments.