Forest of Piano

The series ended after 26 bound volumes. The series was adapted into a 2007 Japanese animated feature film by director Masayuki Kojima and production company Madhouse. The film featured performances by the renowned pianist Vladimir Ashkenazy. An anime television series adaptation produced by Gaina aired from April 2018 to April 2019 on NHK.

• Portal — yes

• Type — manga • Title — Totonō Oto: Mō Hitotsu no Piano no Mori • Author — Makoto Isshiki • Publisher — Kodansha • Magazine — Weekly Morning • First — December 26, 2024 • Volumes — 3

• Type — tv series • Director — * Gaku Nakatani (S1 Season 1) • Ryūtarō Suzuki (S1 Season 1) • Hiroyuki Yamaga (S2 Season 2) • Writer — * Mika Abe • Aki Itami (S1 Season 1) • Music — Harumi Fuuki • Studio — Gaina • Licensee — Netflix • Network — NHK General TV • First — April 8, 2018 • Last — April 14, 2019 • Episodes — 24

• Type — film • Director — Masayuki Kojima • Writer — Ryuta Hourai • Music — Keisuke Shinohara • Studio — Madhouse • Released — July 21, 2007 • Runtime — 101 minutes

• Type — manga • Author — Makoto Isshiki • Publisher — Kodansha • Publisher En — Kodansha Comics • Magazine — * Young Magazine Uppers • Weekly Morning • First — 1998 • Last — 2015 • Volumes — 26

• Ja Kanji — ピアノの森 –The perfect world of KAI– • Ja Romaji — Piano no Mori • Genre — Musical

Forest of Piano is a story that follows Kai Ichinose, a boy who lives in the red light district but escapes at night to play the piano in the forest. Shuhei Amamiya, the grade-school son of a professional pianist, transfers to Moriwaki Elementary, Kai's elementary school. But it doesn't take long before Shuhei is picked on by the class bullies, and gets involved in a dare to play the mysterious piano in the forest, leading to his meeting with Kai, who seems to be the only one capable of getting sound out of the thought-to-be broken piano. Kai's ability earns him the respect of Shuhei and his music teacher, former master pianist Sosuke Ajino. Both Shuhei and Ajino try to get Kai to take proper piano lessons, but Kai is at first resistant to refining his piano-playing technique. However, after hearing Sosuke play a Chopin piece he just can't seem to play himself, he relents.

• Kai Ichinose (一ノ瀬 海, Ichinose Kai): • Kai is the son of a prostitute. He is an elementary school student who often plays the mysterious piano in the forest. He has the ability to instantly remember any piano piece he hears and play it back perfectly. In the future, he is a renowned pianist. • Sōsuke Ajino (阿字野壮介, Ajino Sōsuke): • Sosuke is the music teacher at Kai and Shuhei's school. In his youth he was a famous pianist who won several awards for his playing, however his career was abruptly ended after an accident injured his left hand and killed his fiance. After discovering Kai's affinity for the piano, he becomes his coach. • Shūhei Amamiya (雨宮修平, Amamiya Shūhei): • Shuhei is a transfer student from Tokyo who makes quick friends with Kai following their love for the piano. • Wei Pang (パン・ウェイ, Pan Uey): • A Chinese pianist studying abroad in Poland. He is one of the participants in the International Chopin Piano Competition and is favored to win. His piano style sounds eerily similar to Ajino's before his accident. • Lech Szymanowski (レフシマノフキ, Ref Shimanofuki): • A Polish pianist and one of the participants in the International Chopin Piano Competition. He is often called the "New Star of Poland". • Takako Maruyama (丸山誉子, Maruyama Takako): • Takako appears as one of the participants at the regional piano competition. She was inspired by Kai to become a better pianist. • Sophie Ormesson (ソフィ・オルメッソン, Soffi Orumeson): • Karol Adamski (カロル・アダムスキ, Karoru Adamusuki): • Namie Amamiya (雨宮奈美恵, Amamiya Namie): • Namie is Shuhei's mother.

Makoto Isshiki was inspired to write Forest of Piano when she watched a documentary showing Stanislav Bunin winning the International Frédéric Chopin Piano Competition in 1985.

Forest of Piano is written and illustrated by Makoto Isshiki. It was published by Kodansha in Japan, who first serialized the series in the seinen manga magazine Young Magazine Uppers from 1998 to 2004, and later in Weekly Morning from 2004 to 2015. The series was published into 26 tankōbon volumes, with the first volume being released on August 6, 1999, and the final volume released on December 22, 2015. The series is licensed by Sharp Point Press in Taiwan. Kodansha Comics acquired the series for publication in English, and are releasing the volumes digitally. A spin-off manga titled Totonō Oto: Mō Hitotsu no Piano no Mori began serialization in Weekly Morning on December 26, 2024. The series has been published into three tankōbon volumes as of June 23, 2026.

An anime television series adaptation produced by Gaina aired from April 8, 2018, to April 14, 2019, on NHK. The first season is directed by Gaku Nakatani. Ryūtarō Suzuki as the series director, Aki Itami and Mika Abe are in charge of series composition, and Sumie Kinoshita is handling character designs. Harumi Fuuki is composing the series' music. The anime was originally listed to air for 12 episodes, but was later announced to air for 24 episodes. The 24 episodes will air in two seasons, with the first season airing from April to July 2018, and the second season airing from January to April 2019. Hiroyuki Yamaga will take over as director for the second season, while most of the staff and cast will reprise their roles. Netflix have announced that they had acquired exclusive streaming rights for the series worldwide, and simulcast the series in Japan, and released the series globally in September 2018.