Animenewsnetwork - Sisters, sisters, there were never such devoted sisters. If you thought Izaya was a king-sized bucket of nuts and bolts, just wait until you get a load of his younger siblings. Twins Mairu and Kururi Orihara are entering high school this year, and they've got all their bases covered, having drawn straws to determine perfectly complementary personalities to one another a few years prior. Yes, it seems like a bizarre trick to play even for identical twins, but it's far from the weirdest thing about this Orihara pair. What in the world did Izaya and the twins' parents do to them to create such weird little monsters? I hope we find out.