Oboro was a boy with a jovial and casual personality, very prone to making jokes and witty comments with innuendos. His energetic and goofy persona was similar to that of his classmate Hizashi Yamada, although Oboro never quite reached his excitement level.

Due to his extravagant behavior, he wasn't big on following protocol and had little to no sense of shame, as evidenced when he came into class through a window and changed his clothes in front of everyone, regardless of whether this might bother other people. He didn't give much importance to his criticisms or reprimands.

Despite this, the most characteristic element of his personality is his selfless altruism. Oboro was the type of person to go the extra mile when someone or something needed help.