Heroes 4-3 “Acceptance”

In Tokyo, Hiro’s sister wants to talk to him. She lectures Hiro, and then tells him that she and Ando are getting married, and all because he messed with time. She asks that he give her away at the wedding, and I wonder if anybody on staff researched whether or not they do that at Japanese weddings. Ando’s not happy, because the terminally ill Hiro may not be alive by then. That’s pretty selfish on Ando’s part, really. Also, how do they know for sure that Hiro is dying? It seems like they leapt to that conclusion without much supporting evidence.