Nai is very kind and innocent, albeit quite naïve. Due to his dependence on Karoku, he tends to rely on those around him who are willing to lend him help- often getting him into trouble.
Nai does not know much about the world around him and is confused by very simple terms- not understanding the compliments he often receives, due to his otherworldliness. When Gareki first found him, he didn't know what blood was, referring to it as "red water". Despite this, he is also quite brave, as he dove to save an endangered animal and defended Karoku when they were attacked alone.
Nai is an all around pure and innocent character. He is eager to help, and incredibly loyal to those he calls his "friends."
