is a Japanese manga series written by Toshiki Inoue with original character design by Keita Amemiya and scenario by Wosamu Kine. The first twelve episodes ("Part I") of an anime adaptation titled Sword Gai: The Animation were released on Netflix worldwide on March 23, 2018. Part II was released on July 30, 2018.
Plot
Gai is a young man who became an apprentice under a blacksmith named Amon, who found him as newborn holding on to a legendary cursed katana called "Shiryū" that drove his mother into committing suicide rather than let its bloodlust to consume her. The katana is revealed to be one of many cursed weapons that turn the user into a thrall to embody their murderous impulses, the Chrystalis gradually losing their humanity while becoming armored monsters called Busoma. After Gai lost his right arm when a ceremony to quell Shiryū goes awry, Amon forged the sword into a prosthetic limb for Gai. Becoming a chrysalis with the ability to fuse with his weapon, Gai clings on to his humanity while facing the Busoma seeking to exterminate humanity.
Characters
User of Demonic Sword Shiryu.
User of Chakram.
Daughter of Amon Ogata.
Adoptive father of Gai. Kigetsu
User of Fallgon Sword.
User of Azoth Sword. Mina Haraya
Administrator of the Shoshidai. Midoriko
A Underground Idol and User of Flanberge Sword. Yasuko Tanaka
User of Gallon's Hammer. Issei Ariga
User of Nebestigma. Arnys
Shin Matoba
Kazuma Matoba
Rie Matoba
Kuromaru
Kagatsuka
Himiko
Leader of the Gabi. Kazumo
Hakim
Tatsumi
Kiyomi
Kei
Media
Manga
It began serialization in Hero's Inc.'s seinen manga magazine Hero's in 2012 and has been collected into six tankōbon volumes. A sequel series known as was released in 2016 and ended in 2019.
Anime
An anime adaptation originally developed by DLE and Fields was scheduled to air in April 2016, but it was delayed indefinitely until Netflix streamed the series worldwide on March 23, 2018. Tomohito Naka directed the series while Takahiro Ikezoe served as the chief director, Inoue himself wrote the scripts, Atsuko Nakajima designed the characters, Toshiki Kameyama was the sound designer, and Kotaro Nakagawa composed the music. Sword Gai: The Animation was animated by LandQ Studios. The opening theme song is by Yūto Uemura. Sentai Filmworks will release the series on home video.