Atsumu is a childhood friend of Jinta and Menma. In the present, Atsumu holds a condescending attitude towards Jinta. He becomes agitated when Menma is mentioned and is still distraught over her death. He, together with Chiriko, attend the same high school, which Jinta failed the entrance exams to enter. Atsumu and Chiriko were once mistaken as a pair.
Appearances
Ano Hi Mita Hana no Namae wo Bokutachi wa Mada Shiranai
Main cast, played by Takahiro Sakurai
- Episode 1x01: Super Peace Busters (Apr 15, 2011)
- Episode 1x02: Menma the Hero (Apr 21, 2011)
- Episode 1x03: The Search for Menma Association (Apr 28, 2011)
- Episode 1x04: White Ribbon Dress (May 5, 2011)
- Episode 1x05: Tunnel (May 12, 2011)
- Episode 1x06: Forget It, Don't Forget (May 19, 2011)
- Episode 1x07: The Real Plea (May 26, 2011)
- Episode 1x08: I Wonder (Jun 2, 2011)
- Episode 1x09: Menma and Company (Jun 9, 2011)
- Episode 1x10: Fireworks (Jun 16, 2011)
- Episode 1x11: The Flower Blooming on That Summer (Jun 23, 2011)
- Episode S01 Special: The Flower We Saw That Day The Movie (Aug 31, 2013)