Toshio Koumura is a language teacher at Tomoya's school and Tomoya's home room teacher during his first year. His age conceals his once vigorous past marked by his enthusiasm in teaching. He was friends with Kouko Ibuki three years ago.  Five years ago, he was a strict teacher in an engineering school being well known for delinquents. He changed a lot of delinquents in the engineering school for the better, but at Tomoya's school, his skill is not needed due to the prestigious image of the school. He finds Tomoya and Youhei to be odd ones and decides to change them for the better; he is the one who arranged Tomoya and Youhei to meet.  He retires one year later, prior to the end of the school segment of the story. In After Story, he returns and organizes the fake graduating ceremony intended for Nagisa, arranged by Tomoya. 

A few months have passed since Tomoya declared his love to Nagisa, and his life keeps moving forward as he continues to meet a variety of new people, expanding his world in the process. While Tomoya's world continues to expand, his and Nagisa's relationship is entering a new phase, and neither of them is quite sure where it will take them. Through his relationship with Nagisa, Tomoya begins to understand the meaning and importance of family. 
 
But as Tomoya and Nagisa begin a family of their own, they are faced with many hardships along the way in Clannad: After Story 
 
(Source: Sentai Filmworks, edited) 
 
Note: Includes 2 un-numbered 'extra' and 'summary' episodes that aired at the end of the series.

Takeshi Aono was an actor, voice actor, and narrator from Asahikawa, Hokkaido. He was attached to Aoni Production at the time of his death. He graduated from Hokkaido Asahikawa Higashi High School.



Tomoya is a bitter, third year high school student. His mother passed away, causing his father to resort to alcohol and gambling. Tomoya is distant with his father and has become a delinquent in the years since his mother's death. Walking to school, he meets Nagisa Furukawa who is a year older but is repeating the grade due to illness. She is alone, as most of her friends have moved on. The two begin hanging out, and as time goes by, Tomoya finds his life shifting in a new direction. 
 
(Source: Sentai Filmworks)

Laughs and shenanigans are on the horizon in this crossover! Fan-favorite characters from Kanon, Air, Clannad, Little Busters!, Rewrite, and more start the school year together in a new world where anything is possible. With so much personality in one anime universe, every day feels like a new kind of dream. 
(Source: Funimation)

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He provides the Japanese dubbed voice of Rick Sanchez from Rick and Morty and Dr. Heinz Doofenshmirtz from Phineas and Ferb.