Base-Breaking Character: Benio. Half the audience finds her hilarious and the other half finds her annoying, creepy, and obstructive to whatever else is going on.
Mashiro's angry dance is also pretty memetic on its own for its sheer cuteness.
Squick: Konoha finds herself falling for Arata, a sixth-grader who her parents are trying to arrange a marriage with. It's not clear how old either is, but even in the best case scenario of a three-year gap (12 and 15), Arata still clearly hasn't hit puberty yet, making Konoha look like a shotacon.
and Vocaloid