Now the Wapanese animu industry knows it's in trouble when its best works are the ones that go for 3 minutes. That's truly horrible. And the other think about it is that "Here Comes My Sis-In-Law" had the elbow room to become just as worse. Like, "Dog & Scissors" worse.
But it didn't. It was a bright, colorful, feel-good story about a little boy who ends up becoming "the comedy routine's straight man" to his new sister; one who is over-obsessed and triangle-mouthed.
The collision between the worlds of Tomoya and Ichika didn't become as "lulz for otaku" destructive as the show may want to; but it's a good show to watch regardless.