Yuu’s first day at Hoshinoumi Academy is fairly eventful, as Joujirou demonstrates the incredibly destructive and unnecessary way he buys lunch. But while his demonstration and its resulting wounds is played for laughs (and it is pretty funny on its face), the show delves into darker territory with regard to the effects special abilities have on the people who possess them.
But first, Nao and Joujirou show Yuu how they operate, using the location pinpointing and power identification skills of a “comrade” to locate ability users who, like Yuu, are up to no good. In this case, it’s the archery captain, who uses his “thoughtography” ability to produce images of girls in their underwear which he then sells…to help support his struggling family.
Nao and Joujirou put Yuu to work immediately, using his body-swapping ability to get the name of the culprit and foil his attempt to blackmail Nao (who is nonetheless flattered that the culprit thinks she’s attractive). It’s clear Yuu is a good fit, and that he’s now on the straight and narrow stopping people from going too far with their powers or using them for nefarious purposes.
The StuCo he’s now in less about punishing the ability users and more about protecting them from themselves. Those who get discovered are often taken away by the powers that be to have their brains poked and prodded. Nao knows this because her own brother, the first youth who had a power awaken in them, underwent just that kind of intrusive experimentation, leaving him a husk of the person he once was.
The importance, and indeed nobility of The StuCo’s cause is underlined greatly when Nao brings Yuu to see her brother. At this point, Nao is used to him not reacting to anything, despite his hospital being in the most gorgeous, P.A.Works-y environment possible. She even buys lunch and eats it on the train like they’re on some workaday errand, not visiting her profoundly wounded brother.
Her casual attitude may be Nao attempting to live as normal and happy a life as she can in her brother’s stead, because she managed to escape the same fate. But however you interpret it, it’s a brother-sister dynamic Yuu doesn’t repeated with him and his beloved Ayumi. While initially resistant to all the crazy crap going on at Hoshinoumi with Nao and Joujirou, perhaps Yuu will continue to be more smart with his powers and get with the program.
After all, as Nao says, any of them could be captured tomorrow and their lives and the lives of those they love irreparably ruined. For all its goofy or laughable moments, Charlotte doesn’t fail to bring the gravity either. That combo makes sense: for those with lives almost always on the brink and an ongoing mission that may not end until they lose their powers at adolescence, one must have fun, goof off, buy beef tongue and destroy a cafeteria now and then to maintain their sanity.