The Seven Deadly Sins -Signs of Holy War- TV Special's Ad Previews Opening Theme Song

The official website for the television anime of Nakaba Suzuki's The Seven Deadly Sins manga began streaming a 15-second television commercial for Nanatsu no Taizai -Seisen no Shirushi- (The Seven Deadly Sins -Signs of Holy War-), the four-episode television anime special. The video previews the anime's opening theme song "CLASSIC" by MUCC.

The television special will premiere on August 28, and will air on MBS and TBS on Sundays at 5:00 p.m for four weeks.

The anime's staff had announced in October that production on a new television anime series was green-lit for this year. The original announcement of the new television anime series had stated that the new series would feature the same staff, but Sunday's announcement lists a different staff. The staff has not specified if the announcement last October was for this four-week special.

Tomokazu Tokoro (Hellsing Ultimate, Haibane Renmei) is directing the anime at A-1 Pictures. Yuniko Ayana(Girls Beyond the Wasteland, Hello!! KINMOZA) writing and overseeing the scripts, and Yuichiro Kido(Gatchaman Crowds insight) is also writing the scripts. Keigo Sasaki is returning to design the characters,Tomoko Sudo (animation director for Oreshura, Silver Spoon) is the chief animation director, and Hiroyuki Sawano and Takafumi Wada are composing the music. Alisa Takigawa will perform the ending theme song "Iroasenai Hitomi."

The returning cast includes:
Yuuki Kaji as Meliodas
Sora Amamiya as Elizabeth
Misaki Kuno as Hawk
Aoi Yūki as Diane
Tatsuhisa Suzuki as Ban
Jun Fukuyama as King
Mamoru Miyano as Gilthunder
Takahiro Sakurai as Griamor
Ryohei Kimura as Hauser
Maaya Sakamoto as Merlin
Yuuhei Takagi as Gowther

The first television anime of the manga premiered in Japan last October, and ended with 24 episodes. The manga also bundled two original video anime projects last summer.​