Humanity vs Crotins

Yuuta Sato, is a 16 year old boy who just joined a school that teaches students how to pilot a PS (Power Suits). The schools name is Kurogi High and its main goal is to teach students how to use and fight with the PS. The reason they have to do this is because alien life forms that like humans called the Crotins have invaded earth. Now humanity has to fight the Crotins with the power suits, each power suit is unique, it programs itself based of the owner's personality and the owner's physical capabilities.