Io, my dear boy. I'm very sorry to tell you (especially you) this, but I'm afraid you wasted your money. It's a nice infographic, but you could have asked literally anybody in the school for this kind of information for free. Heck, they are in your year and, if I remember correctly, are even your classmates - you could have just pay attention in your classes!
okay, the last one is assuming the twins did attend classes and not just strolled leisurely around the school as grades appeared in their gradebooks on their own; who knows when it's them...
I would have found these "detective" at least somewhat impressive if they had found... I don't know. At least an information that Beppus lived in Binan ten years ago and attended elementary school there before they left (which is mentioned in canon).
...Speaking of which, this was also an information that their classmates might have provided. In theory.
Assuming Binan High and Bijou High are the only high schools in the town, there must be boys in Love!second year, who started elementary school along with Beppus and had a chance to remember them. Yes, the twins probably weren't there for too long and left the Earth before even finishing the first grade, but 1)they were identical twins - this is remarkable enough to remember, especially for little kids, for whom Beppus may have been their first encounter with the concept of identical twins in general; and 2)this is Binan, here a lot of people have an extremely good memory of their childhood, at least when it's plot-convenient, so...
Though it doesn't seem that anybody remembered them. Perhaps I overestimate the potential memory of six-year-olds.
Or maybe Beppus and Dadacha didn't want to risk that instead of "Oh, you're so mysterious and cool!" somebody would say "Aren't you two those Beppu boys who sucked at math and pestered everyone with the story of how you allegedly met a superhero in Binan Land?". So they erased even a hint of memory about themselves, just in case.
....but a proper detective still would have found out it. So yeah. Waste of money.
