With only seven days remaining until the fourth and final season of Attack on Titan airs, the series began its countdown with some art that unveils a glimpse at a cast of new characters.The Twitter post that shared these illustrations announced that it was commencing the seven-day countdown to the final season's debut. The piece of art in question was illustrated by the show's production staff, and it was revealed that it would be the first of seven pieces set to be released during the countdown.RELATED: Attack on Titan Producers' Comments on the Studio Change Hype Season 4's Scale

For followers of the anime who have not been keeping up with the manga by Hajime Isayama, the characters on display in this image might be rather surprising. In the place of the protagonists followed thus far, there are instead a small group of new, seemingly younger characters, none of whom have been previously seen in the show. Earlier released images have already hinted at drastic changes set to arrive in the final season, with many of the well-known characters looking quite different.

Since the beginning of the countdown, more production staff illustrations have been released to celebrate the impending arrival of the story's conclusion. These have included images of characters far more familiar to fans of the show. However, they have also continued to highlight the prominent role of the newer stars.

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For fans who need to recap the series, or perhaps read ahead in light of the new information shared in these posts, the entire manga will soon be receiving colored reprints to allow for a more vivid revisiting of the story. As for the final season itself, the first episode is set to debut on NHK General TV on Dec. 7.  Funimation is set to premiere the episode on the same day as its Japanese release, while Netflix Philippines will be airing it on Dec. 11.

Based on the manga series of the same name by Hajime Isayama, Attack on Titan: The Final Season premieres Dec. 7 on Funimation.

KEEP READING: Attack on Titan Character Designs Reveal a Major Final-Season Plot Point

Source: Twitter