Common sense please!
I just need an MC with common sense. So far, I've only seen that consistently in MCs of Lost Alice, Alice in The Country of Heart.
Let me clarify that it's a trait that is inconsistent in a few other Otome MCs while missing in most.
I think common sense shouldn't be hard to define as it's pretty much the acceptable social norm, but for the sake of argument, I'll list a few unnecessarily dramatic cases that lack common sense:
1/ MC slaps the person who hid the fact that he was using drugs (regardless of reasons), even though he hadn't caused any harm
2/ MC condemns her companion for killing a surrendered assassin who had tried to kill them just minutes ago, because she believes killing is always bad
3/ MC just babbles about her love interest's missing sister to a stranger and follows that person without batting an eye, because he says he knows the girl's whereabouts.
Of course there are millions more, but the above are probably the worse cases that I came across... without counting a certain MC who stays at a stranger's apartment unquestioningly or takes a ride on a stranger's car and stays at his mansion for game testing purpose :113: in plot-hole wonderland LOL