Masami Koiwa

Active·Active 2015–2026
Career stats
4Films
24Posters
11Years active
2026Peak year
Eras & genres
Eras
Genres

Selected work

4 posters
Demon Slayer: Kimetsu no Yaiba
Demon Slayer: Kimetsu no Yaiba · 2021
Mobile Suit Gundam Hathaway: The Sorcery of Nymph Circe
Mobile Suit Gundam Hathaway: The Sorcery of Nymph Circe · 2026
Mobile Suit Gundam: NT - Narrative
Mobile Suit Gundam: NT - Narrative · 2018
One Piece: Episode of Sabo - Bond of Three Brothers, a Miraculous Reunion and an Inherited Will
One Piece: Episode of Sabo - Bond of Three Brothers, a Miraculous Reunion and an Inherited Will · 2015

Frequent collaborators

30 repeat partners
Aya Nasuno
Animation Department · 3 films together
Eri Sodeyama
Animation Department · 3 films together
Izumi Kodama
Animation Department · 3 films together
Rikiya Koyama
Rikiya Koyama
Actor · 3 films together
Setsuko Takenouchi
Animation Department · 3 films together
Stephen Fu
Actor · 3 films together
Taeko Watanabe
Animation Department · 3 films together
Yûki Ikumi
Animation Department · 3 films together