The Seven Mortal Sins, also known as Sin: The 7 Deadly Sins (sin 七つの大罪 Shin: Nanatsu no Taizai), is a Japanese anime television series animated by Artland and TNK that aired from April 14, 2017 to July 29, 2017. It is an adaptation of Hobby Japan's media franchise of the same name, which primarily consists of a series of fantasy figures.
An anime television series adaptation was announced in August 2016. The anime premiered on AT-X with further broadcasts on Tokyo MX & BS11 from April 14 to July 29, 2017 for 12 episodes. Crunchyroll streamed the series before Funimation has licensed the series in North America.
On April 21, 2021, the series' official Twitter page became active again with two announcements: a new Blu-Ray boxed set to be release with new artwork and inclusions, as well as a brand-new mobile game in RPG form, named Seven Mortal Sins X-tasy (sin 七つの大罪 X-TASY). According to this game's Twitter page, the original voice cast for the demon lords, the virtues and Maria Totsuka will all reprise their roles, plus there are new characters to be met in this adventure.
Lucifer, one of God's archangels, is denounced for rebelling against the Almighty's will and expelled from Heaven. She is forced into a brief stopover by crashing into a high school's church, where a young girl named Maria Totsuka, witnesses her arrival. After Lucifer has infused the girl with a part of her angel's blood, she continues her fall into the depths of Hell, where she is met by Leviathan, the aspiring minor Demon Lord of Envy.
Soon after, Lucifer is challenged by the Seven Sins, the ruling Demon Lords of Hell, led by Belial. Bundling their powers, the Seven Sins overcome Lucifer and seal away her angelic powers by fitting her with a cursed Garb of Punishment, thereby turning her into a Demon Lord. Swearing revenge on her defeaters, Lucifer returns with Leviathan to Earth, where she turns Maria into her immortal slave. With her two sidekicks in tow, Lucifer sets out to defeat the Seven Sins one at a time in order to sunder their powers imbuing her Garb.
- Original Creator: HobbyJAPAN
- Director: Kinji Yoshimoto
- Producer: Kazuaki Takahashi, Masaaki Yokota, Noritomo Isogai, Takuya Inoue, Takao Asaga
- Series Composition: Kinji Yoshimoto
- Script: Masashi Suzuki
- Music: Hiroaki Tsutsumi, Masaru Yokoyama
- Original Concept: Kinji Yoshimoto
- Original Character Design: Niθ
- Character Design: Sachiko Yasuda
- Art Director: Kenta Masuda
- Chief Animation Director: Junji Goto, Masaru Koseki, Sachiko Yasuda
- Sound Director: Hiroto Morishita
- Director of Photography: Satoshi Fujita
- The Proud Fallen Angel
- Driven Wild by Envy
- Beach of Lust
- The Town of Fog Where Greed Brews
- The Languid Diva
- Sloth Online
- Guiltless Gluttony
- Unleashed Wrath
- Ye Abandon All Hope
- Love Your Enemies and Pray for Those Who Persecute You
- Ask, and It Shall Be Given to You
- God's in His Heaven, All's Right With the World
- Goddamn☆Critical (がっでむ☆くりてぃかる), by Astaroth (Azusa Tadoroko); and Lucifer (Eri Kitamura)
- Levy's Recipe (レヴィのレシピ), by Leviathan (Akane Fujita)
- baby now, by Asmodeus (Chiaki Takeashi)
- Requiem Lullaby, by Mammon (Yoko Hikasa)
- ASUDEKO, by Astaroth (Azusa Tadoroko)
- Binetsu na Dancin' (微熱なDancin'), by Lucifer (Eri Kitamura)
- Binetsu na ASUDEKO (微熱なASUDEKO), by Astaroth (Azusa Tadoroko) and Lucifer (Eri Kitamura)
- Mou Doomo Punipanya Mode (もうどぉもぷにぱにゃモード), by Belphegor (Mai Kakuma)
- Mille Himitsu Feuille (ミル・ひみつ・フィーユ), by Beelzebub (Yui Ogura)
- Sen no Gekirin (戦の逆鱗), by Satan (Arisa Sakuraba)
- YES or YES, by Belial (Shizuka Ito)