my aunt actually pointed this out while i was making her watch opm and also explaining mp100 to her but i’m sharing this bc its interesting
saitama and mob both have similar, very plain faces. like, so much to the point where i’ve seen people call mob “saitama with a bowlcut”. now i explained the reasons as to why they’re both so expressionless to my aunt (i.e. saitama has depression, mob has to control his emotions) but she told me that she thought it was a very deliberate story telling device
my aunt explained that since they both have plain faces, it would make sense then to view them as the “everyman” – a character that’s so plain and ordinary that it’s easy to project on them
and that’s when i realized that’s the whole /point/ of saitama’s and mob’s characters
i think another meta post pointed this out, but in a typical manga mob and saitama would be the quirky side kicks. the ordinary ones that follow around more serious protags with tragic backstories like genos and ritsu. it’s easier for audiences to project on characters that are kinda quirky, kinda expressionless, and also kinda “funnier” (humor-wise, referring to both saitama’s and mob’s deadpan jokes) – making it easier for them to admire the hero because they feel as though they are already in a role that does.
but with opm and mp100, saitama and mob are the heroes – for a very specific reason. the moral of both stories is that /anyone/ can be special, depending upon what they do. they even say it in mp100’s OP: “if everyone’s not special / then maybe you can be what you want to be.” the point is that everyone is equal (and we’re talking fundamentally, not in terms of society or under the law okay), even if you have great powers. it’s what you do with those great powers that make you, well, great.
saitama and mob look like the “everyman” for this reason then. but also so we can project on them, for reasons stated above. we’re supposed to project on saitama and mob because, as the moral of both their stories say, we are all the same. we are all the everyman. and we all have great powers. and, god, this is gonna sound corny. but while our powers might not be defeating villains with one punch or literally exploding in an overload of a manifestation of our emotions, we still have the choice to do something great with them.
and i think that’s fucking brilliant of ONE to make that/emphasize that point just through something as simple as a /facial expression/