You looked like the copy of your father while Iwaizumi was same as his mother. You two never had the best relationship between siblings but it was never the worst relationship. After all your parents got divorced when you were 5. You were living with your father and Iwaizumi was living with his mother. The distance between you two got far in years. You two rarely talked to each other. But you were his sister and he was your brother. You two supported each other in both of yours darkest times.