"A year has passed since Menma's ghostly return to the Super Peace Busters. Although the time they spent together during that summer was short, the five members reminisce about what happened as they each write a letter to their lost friend."
Miyu Irino
as Jinta "Jintan" Yadomi (voice)
Ai Kayano
as Meiko "Menma" Honma (voice)
Haruka Tomatsu
as Naruko "Anaru" Anjo (voice)
Takahiro Sakurai
as Atsumu "Yukiatsu" Matsuyuki (voice)
Saori Hayami
as Chiriko "Tsuruko" Tsurumi (voice)
Takayuki Kondo
as Tetsudo "Poppo" Hisakawa (voice)
Mutsumi Tamura
as Young Jintan (voice)
Asami Seto
as Young Yukiatsu (voice)
Aki Toyosaki
as Young Poppo (voice)
Mitsuru Ogata
as Atsushi Yadomi (voice)
Kaoru Mizuhara
as Satoshi Honma (voice)
Sayaka Ohara
as Touko Yadami (voice)
Fuyuka Ono
as Irene Honma (voice)
Hatsue Koizumi
Key Animation
Mariko Iguchi
Tomomi Kawatsuma
Mio Araki
Shizuo Kurahashi
Foley Artist
Yoshigi Hata
Production Assistant
Kouichi Sugitani
Minori Homura
Animation
Ayumu Anzai
Sound Mixer
Manami Fukuyo
Mika Saito
Keisuke Furuichi
Tadashi Sakazaki
Aika Kawasaki
Yuka Hasegawa
Kanako Ueda
Nishichi Yamaguchi
Takashi Hyodo
Eri Yamazaki
Harumi Takagi
Chihiro Hayashi
Kazuyuki Ueda
Koji Odate
Shingo Ogiso
Keigo Sasaki
Hitomi Ochiai
Hiroyuki Kanie
Toshiharu Sugie
Takafumi Torii
Mieko Ogata
Mitsuko Baba
Kota Michishita
Natsumi Ishizaki
Ikue Yoshima
Tsutomu Ishigaki
Art Direction
Cédric Hérole
Jun Yamazaki
Masayoshi Tanaka
Shinobu Yoshioka
Second Unit Director
Noriko Ozaki
Producer
Shunsuke Saitou
Mari Okada
Screenplay
Tatsuyuki Nagai
Director
Reimy
Original Music Composer
Shigeru Nishiyama
Editor
Natsuko Kondou
Hiromi Hata
Storyboard Artist
Original Story
Jin Aketagawa
Sound Director
Kazuko Nakashima
Color Designer
Character Designer
Kouichirou Natsume
Executive Producer
Tomonori Ochikoshi
Production Coordinator
Hiroyuki Moriyama
CGI Director
Masuo Ueda
Director of Photography
Yutaka Ishikawa
Yoshimasa Genohzono
Katsuhiro Nakano
Sound Effects
Yukie Hiyamizu
Prop Designer
Animation Director
Visual Effects Supervisor
Koji Yamamoto
Takayoshi Fukushima
Hiroyuki Shimizu
Mikihiro Iwata