Archetypes Update:

Tsundere - Key
Yandere-
Kuudere- Jinx
Dandere- (Perhaps our Ninja Janitor?)
Moe-
Nadeshiko- Deja
Genki-
Loli- Headmistress Yui
Ojou-
Kamidere- Val
Bokukko-
Bifauxnen- Obviously, Toaster-san

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Theres more archetypes than that but here's a starter list. Feel free to add in your own characters n stuff o3o