In the first half, both Himeko/Switch and the Student Council conspire to send Bossun and Tsubaki on a banner-writing mission alone together while they observe. The newly-discovered twin brothers bicker the whole time, and end up making multiple mistakes. In the second half, Tsubaki comes to Bossun’s house for dinner, where he meets Akane and Rumi and sees photos and videos of his biological parents. The two then take a picture for their parents’ shrine.
51 episodes. Only a few series we’ve ever watched have stretched so far, and many of those ended right there at 51. This episode wan’t the end of Sket Dance, but it was the end of the “year”, and the end of an arc, specifically, the Brother Arc. Seeing Tsubaki in a whole different light, it dawns on us how much it was foreshadowed that they were separated at birth. Their physical differences are a result of Bossun taking after his father and Tsubaki his mother. Tsubaki’s even a lefty to Bossun’s righty. There’s a lot of differences between the two, but there’s still that underlying bond neither of them can ignore – one you only get with blood.
I imagine if it turned out two of my friends in high school found out they were related, it would be a pretty exciting time, even if it had next to nothing to do with me. Both clubs they belong to seem to feel this excitement too (Switch likens it to fatherly pride), as do Bossun’s mother and sister. So with this arc mostly resolved and the two brothers on more-or-less cordial terms, the next year of Sket Dance will introduce a new character – possibly a new Sket-dan member, who looks to possess every anime cliche in the book – intentionally, of course. We’ll be watching to see how that goes.