According to the Lore of the Written Sleeve and illustrated by Nakaba Suzuki, Nanatsu No Taizai (The Seven Deadly SINS), on July 25, the birthday of Meliodas is celebrated, one of the main characters of the franchise also known as the "Dragon of the wrath". The official Twitter account did not publish any update on this, but fans if they remembered the character with illustrations and hashtag # メリオダス 誕生 祭 2021.
On the other hand, Nanatsu No Taizai, is a written sleeve and illustrated by Nakaba Suzuki that was published in the magazine Weekly Shonen Magazine of the Kodansha publisher between October 2012 and March 2020, with 41 compilation volumes in total. A sequel titled Mokushiroku No Yonkishi (Four Knights of the Apocalypse) is located in publication.
The work inspired an adaptation to the anime of 24 episodes produced by studies A-1 Pictures and premiered in October 2014 in Japan, followed by a second season of 24 episodes released in January 2018. A third season of 24 episodes was produced by Studio Deen and premiered in October 2019, followed by a fourth and last season premiered in January 2021.
Synopsis of Nanatsu No Taizai
The seven capital sins are a group of gentlemen of the Kingdom of Britannia who dissolved ten years accused of treason and for having made a coup d'état against the Kingdom of Lions and their sacred gentlemen. The third princess of Lions, Elizabeth Liones, meets the leader of the seven capital sins, mellow, and asks her for the help of her to rescue the honor of the sacred haze, who are being manipulated by a demonic entity. Meliodas will then begin to gather again to his colleagues, while multiple threats will try to destroy peace every time they get it.
(c) 鈴木央 · 講談社 / 2021 「劇場版 七 つ の 大 罪」 製作 委員会