Ginga Kikoutai Majestic Prince Movie: Kakusei no Idenshi

The alien Wulgaru's last assault against humanity was foiled by the heroic actions of the genetically enhanced humans known as the Evolved Children in their advanced AHSMB battle armor, but now a new attack has been launched against Earth under an even deadlier champion, Diorna, created from the fusion of DNA from two Wulgaru Royals. Unfortunately, Izuru Hitachi, the leader of Team Rabbits who defeated the Wulgaru Royal Jiart, is still out of action and recovering, so the task of marshalling the Majestic Princes and stopping Diorna falls upon the unready shoulders of Toshikazu Asagi. Together with the remaining members of Team Rabbits and the recently created Team Fawn, it’s up to Asagi to hold the line against the most ruthless adversary yet. (Source: Anilist)In the latter half of 21st century, humans leave the Earth and begin to live in space. In order to adapt to the environment in space and deal with the hostile aliens in Jupiter, genetically engineered children called "Princes" are artificially raised and trained to be pilots of armed robots "AHSMB (Advanced High Standard Multipurpose Battle Device). This is a story about one of the teenage "Princes," Hitachi O Izuru, who studies in an academic city Grandzehle.