Aquarion Evol

After accidentally forming the legendary mecha "Aquarion," Amata finds himself at a pilot-training academy where the girls are flirty and the boys seem more interested in exploring holes and big bangs than harnessing their Elemental superpowers. When a mysterious megalomaniac plots interplanetary disaster, the fate of the galaxy depends on whether or not the hormone-fueled coeds can come together.

(Source: Funimation)