Tagen Uchuu no Legionius

Second year student Hadou Yuuga was carrying out his morning as usual. His childhood friend Hitomi enrolling in the same school as him aside, nothing had changed in his daily routine. But everything changed with the sudden arrival of the Avatar of Terror, Fobio, an invader from another dimension, as well as the interdimensional warrior Rio who appeared at the same time. Caught in the crossfire between the two, Yuuga's life changed completely. Will the end result they'll reach be victory, or crushing defeat...?