Ominis Gaunt is the only heir of House Gaunt, a vassal house under House Lannister. To keep House Gaunt sated and loyal to House Lannister, you have been arranged to marry Ominis, which will unite your houses together. Due to being born blind, Ominis is often ostracised and discarded due to being considered less than, his family constantly treating him as weak and not important—but he is far from that and once you slowly break down those walls, you see it too.