The opening and ending of Attack on Titan Season 4 Part 2 were released after premiere of 1st episode in Japan.
The opening is titled as “The Rumbling” and is performed by popular Japanese band ‘SiM’ and the ending song is performed by Ai Higuchi.
The official social handle of Attack on Titan released the opening and ending on it’s YouTube account.
Here is the opening titled as “The Rumbling”:
Ending song is titled as “Akuma na Ko (a child of evil)”
Attack on Titan (Shingeki no Kyojin) is a Japanese dark fantasy anime television series adapted from the manga of the same name by Hajime Isayama that premiered on April 7, 2013. It has aired on NHK General TV in Japan, and Aniplus Asia in various Asia-Pacific countries. In the United States and Canada, the series has streamed on Crunchyroll, Funimation, Amazon Prime Video, and Hulu.
Attack on Titan has received widespread acclaim and has notably sustained a broad, active and international fan base. Critics and audiences have praised the story, characters, animation, music, voice acting, and dark themes.
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Centuries ago, mankind was slaughtered to near extinction by monstrous humanoid creatures called titans, forcing humans to hide in fear behind enormous concentric walls. What makes these giants truly terrifying is that their taste for human flesh is not born out of hunger but what appears to be out of pleasure. To ensure their survival, the remnants of humanity began living within defensive barriers, resulting in one hundred years without a single titan encounter. However, that fragile calm is soon shattered when a colossal titan manages to breach the supposedly impregnable outer wall, reigniting the fight for survival against the man-eating abominations.
After witnessing a horrific personal loss at the hands of the invading creatures, Eren Yeager dedicates his life to their eradication by enlisting into the Survey Corps, an elite military unit that combats the merciless humanoids outside the protection of the walls. Based on Hajime Isayama’s award-winning manga, Shingeki no Kyojin follows Eren, along with his adopted sister Mikasa Ackerman and his childhood friend Armin Arlert, as they join the brutal war against the titans and race to discover a way of defeating them before the last walls are breached.
Synopsis Source: MyAnimeList