Nagito first comes off as a polite, friendly, and easygoing, yet somewhat insecure boy. Hajime Hinata even mentions that his bright smile is very comforting. He was the only one that stayed with Hajime while he was unconscious, and expressed concern for his well-being, even after Hajime told him to go away. Though friendly with everyone, he is mostly interested in spending time with Hajime, and can be quite clingy. Hajime considers him a little annoying and not the most reliable, but still a kind person. During the first Class Trial, Nagito is revealed to have a twisted obsession with hope. As a result, he often begins to ramble on about hope, sometimes rather abruptly—just talking or hearing someone else talk about hope or speak in a hopeful manner can render him in a state of bliss, causing him to sweat, and hold himself in order to contain his excitement. Furthermore, he sometimes has sudden outbursts in which his eyes darken and start to swirl (Hajime describes the look "a crude mix of hope and despair") while he rambles even more enthusiastically, but he usually snaps out of it fairly quickly and seemingly isn't aware of what happened.