Asuhi is a freshman who transferred from Mikagura Middle School to Konoha High School. Although he tends to be shy and reserved, with a tendency to tremble and get flustered easily, his passion for stars brings out his high spirits. Despite some criticism regarding his femininity due to his ability to perform tasks such as decorating rooms, cooking, and doing house chores, Asuhi won the "Male Student That You'd Want As a Little Sister" poll conducted by the Newspaper Club at Konoha High School. However, he was reportedly bullied for this achievement when he was younger.
Asuhi may appear frail and weak, but his strength and power in battle are undeniable. He has an aggressive attack style and a one-hit-kill move that make him formidable on the battlefield. His performance in the Rookie Battle Tournament earned him first place, making him a favorite to win until he was defeated by Otone.
Despite his successes, Asuhi remains polite and apologetic, always bowing and using polite speech patterns when interacting with others. He is deeply passionate about stars and finds them more important than himself. Any criticism directed towards the stars hurts him more than any other form of criticism he has received.
He uses his telescope as a media to activate his power. It allows him to shoot one big star bullet while the other small stars becomes path for the big one. It is also said that his type of attack is one-hit kill attack.