I think what set Onee-san off was not the fact that they were just sharing an umbrella, BUT THE FACT THAT THEY WERE SHARING AN UMBRELLA WHILE THEY HAVE ANOTHER ONE AT THEIR DISPOSAL
I think what set Onee-san off was not the fact that they were just sharing an umbrella, BUT THE FACT THAT THEY WERE SHARING AN UMBRELLA WHILE THEY HAVE ANOTHER ONE AT THEIR DISPOSAL