Since when was Ito so cute?
It's common sense. It may be the same vocal cords but everyone has a different way of speaking. The way your voice sounds isn't set in stone, the way you say things can easily change how your voice sounds.
Why does this need to be said.
>In abstract algebra, a group isomorphism is a function between two groups that sets up a one-to-one correspondence between the elements of the groups in a way that respects the given group operations.
Why is she kinda remind me of the best girl?
I know it falls under >going outside, but try listening to people when they talk. Some people are more expressive, some more monotone, some always seem to be shouting, some people pitch their voice higher or lower depending on the situation, etc. That's not something set in stone by their vocal chords, but related their personality and speaking habits.
Not really. Yamada's just fairly normal, neither alpha nor beta, aggressive in some situations and shy in others. Maybe it's tough for you to wrap your head around personalities when they're not simplified to a cheap buzzword.
no problem if they have same body
They do have a lot of shit to cover, but it's getting kind of inconsistent. Like they're referring to Urara's lack of friends as if it's something they've addressed earlier (Which they did in the manga), but it wasn't even a thing in the first episode.