Attack on Skytree is a special anime, produced by WIT STUDIO.

About the production: the story comes from a manga, there is 1 episode of about 7 minutes and its current status is "finished".

Its main genres are action, adventure and fantasy, with themes such as Parody, Henshin, Male Protagonist and Kaiju.

On AniList, Attack on Skytree has an average score of 59%, an average score, and appears on 7,143 users' lists.

A special anime featuring a battle against the Colossal Titan screened at the Tokyo Skytree. In the short, the characters from Shingeki no Kyojin are part of the Sky Survey Corps, protecting the Wall Skytree, a section of the walled city that contains the Skytree. The Sky Survey Corps find that the Wall Skytree is under attack by an army of titans, including a giant 350 meter-class titan that has suddenly appeared next to the Skytree and remains motionless. (Source: Anime Now!)

Official synopsis from AniList.