As a child, Uruma was a kind and timid boy who loved animals and showed a genuine care and respect for life. Unfortunately, this made him a target for bullying; in particular, his own personal bullies took an interest in him and wanted to test how far they could push and corner him. After Kuga's death, Uruma has grown increasingly distant due to the guilt for Anna's death as well as killing Anzai Zenichi. He tries to cut off all connections with his friends.