Asuto Ishiba, known by the nickname Burst, is a student at Asunaro High School and a former member of the student council, where he served as the Public Relations Representative. His nickname directly means explosion, which reflects a key aspect of his nature.

Burst has a very distinct and wild appearance that makes him stand out. He is notably tall, described as the tallest of the entire student council. He has long green hair and thick, brown lips. An X-shaped scar on his forehead adds to his fierce look, along with various fighting marks on his body and face. His clothing is unconventional for a student, consisting of furs that leave his chest exposed, green pants, a black belt with a large gold buckle, and sandals.

Despite his intimidating and wild appearance, Burst possesses a calm and diligent personality. He takes his duties on the student council seriously and is known to study in the library, indicating a habit of hitting the books. However, he does have a wild side that emerges when he gets the chance to break things, an activity he genuinely enjoys. His behavior can also be very passionate and hot-blooded; he is known to call out Warrior to show himself off in a very energetic manner.

Burst was personally recruited to the student council by Tenryu Kiyomiya. Like the other members, he holds great respect for Tenryu for choosing him and has shown his appreciation and affection for the student council president by participating in a surprise party organized in Tenryu's honor. Burst maintains a friendly relationship with the rest of the student council, considering them not just colleagues but also friends, and he regularly socializes with them outside of council duties.

Regarding his abilities, Burst possesses tremendous physical strength. He is capable of destroying the ground with ease, showcasing his raw, destructive power. No further information is available on his development or deeper motivations beyond his role and relationships within the student council.