He worked for a while as Futaba Kindergarten staff member. Age 22. He first appeared in an episode aired on August 26, 2005. He can literally be on fire at his own discretion, which is his key personality trait in the show. His name is a reflection of this as it is wordplay on the expression "atsukurushii zo!" (暑苦しいぞ！), which means "It's sweltering!". He is a teacher in training for the Sunflower Class. At first, many of the students were taken aback and annoyed at his passionate way of teaching things but they grew to love him in the end. He is known as The Flamer in the Funimation dub. He is the coach of recess and is a mutant who can light himself on fire at will. He firmly believes in natural selection, and thinks gingers should be wiped out.

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