Here are some of his notable works:
* The Irregular at Magic High School (魔法科高校の劣等生, Mahōka Kōkō no Rettōsei): This is his most famous work, a popular light novel series that has been adapted into anime, manga, and video games. It follows the story of Tatsuya Shiba, a seemingly ordinary student at a prestigious magic high school, who possesses extraordinary abilities.
* The Irregular at Magic High School: Visitor Arc (魔法科高校の劣等生 Visitor 編, Mahōka Kōkō no Rettōsei Visitor Hen): A spin-off series that takes place after the events of the main series.
* The Irregular at Magic High School: The World of the Nine Schools (魔法科高校の劣等生 九校戦, Mahōka Kōkō no Rettōsei Kyū Kōsen): A prequel to the main series that focuses on the Nine Schools Magic Competition.
* The Irregular at Magic High School: The Honor at Magic High School (魔法科高校の劣等生 榮耀, Mahōka Kōkō no Rettōsei Eiyo): A side story that explores the life of Miyuki Shiba, Tatsuya's sister, and her role as the "honor student" of the Magic High School.
* Shinmai Maō no Testament (新妹魔王の契約者, Shinmai Maou no Keiyaku-sha): A fantasy light novel series about a boy who ends up living with a demon lord, who is also his little sister.
In addition to these works, Aso has also written other light novels and short stories. He continues to be a popular and prolific author in the Japanese light novel scene.