In a unique anime spectacle, a fierce battle unfolds at the Tokyo Skytree against the Colossal Titan. The familiar faces from Shingeki no Kyojin take on the roles of the Sky Survey Corps, defending the Wall Skytree, a crucial segment within the city's fortification housing the Skytree. As the Sky Survey Corps confront an onslaught of titans threatening the Wall Skytree, a colossal 350-meter titan emerges beside the Skytree, ominously still, setting the stage for a monumental clash.