3Hz

3Hz Inc. (Japanese: 株式会社3Hz, Hepburn: Kabushiki-gaisha San Herutsu) was a Japanese animation studio established by ex-Kinema Citrus animators. Yuichiro Matsuka founded the studio in March 2013. The company is referred to as Studio 3 Hz in anime credits.

3Hz Inc.

Native name	株式会社3Hz
Romanized name	Kabushiki-gaisha San Herutsu
Company type	Kabushiki gaisha
Industry	Japanese animation
Founded	March 2013; 12 years ago (2013-03)
Founder	Yūichirō Matsuka
Defunct	June 17, 2024; 13 months ago (2024-06-17)
Fate	Operations acquired by A-1 Pictures and folded
Successor	A-1 Pictures
Headquarters	Suginami, Tokyo, Japan
Key people	Yūichirō Matsuka (CEO)
Website	Official website

On June 17, 2024, 3 Hz announced that it had transferred its animation planning and production business to A-1 Pictures. The company added that its business will continue at A-1 Pictures. Studio 3 Hz and the official X account for the Sword Art Online Alternative: Gun Gale Online II anime confirmed the same staff who have been working on the anime will continue to work on the anime at A-1 Pictures.^[1][2][3]

Works

Television series

Year	Title	Director(s)	Source	Eps.	Refs.
2014	Celestial Method	Masayuki Sakoi	Original work	13	[4]
2016	Dimension W (co-animated with Orange)	Kanta Kamei	Manga	12	[5]
	Flip Flappers	Kiyotaka Oshiyama	Original work	13	[6]
2017	Princess Principal (co-animated with Actas)	Masaki Tachibana	Original work	12	[7]
2018	Sword Art Online Alternative: Gun Gale Online	Masayuki Sakoi	Light novel	12	[8]
2020	Chidori RSC	Masanori Takahashi	Manga	12	[9]
	A3! (co-animated with P.A. Works)	Masayuki Sakoi[a] Makoto Nakazono[b] Keisuke Shinohara[b]	Mobile game	24	[10]
2022	Healer Girl	Yasuhiro Irie	Original work	12	[11]
	The Devil Is a Part-Timer!!	Daisuke Tsukushi	Light novel	12	[12]
2023	The Marginal Service	Masayuki Sakoi	Original work	12	[13]

Original video animations

Year	Title	Director(s)	Source	Eps.	Refs.
2015	Celestial Method	Masayuki Sakoi	Original work	1
2016	Dimension W (co-animated with Orange)	Kanta Kamei	Manga	1
2019	Celestial Method: One More Wish	Masayuki Sakoi	Original work	1

Films

Year	Title	Director(s)	Source	Refs.
2019	Blackfox	Kazuya Nomura Keisuke Shinohara	Original work	[14]

Video games

Title	Publisher	Release date	Note(s)	Ref(s)
Tokyo Xanadu	Nihon Falcom	September 30, 2015	Opening animation.	[15]
Ys VIII: Lacrimosa of Dana	Nihon Falcom	July 21, 2016	Opening animation.	[15]
The Legend of Heroes: Trails of Cold Steel III	Nihon Falcom	September 28, 2017	Opening animation.	[15]
The Legend of Heroes: Trails of Cold Steel IV	Nihon Falcom	September 27, 2018	Opening animation.

Notable staff

A list of notable staff currently or formerly belonging to the studio.

Representative staff

• Yūichirō Matsuya (founder and president)

Animation producers

• Hideaki Kubo (2014~2019)

Directors

• Yasuhiro Irie

Notes

1. Credited as Series Director (シリーズディレクター, Shirīzu Direkutā) for Seasons Spring & Summer, and Director (監督, Kantoku) for Seasons Autumn & Winter.
2. Credited as Director (監督, Kantoku) for Seasons Spring & Summer only.