Aldnoah.Zero

A hypergate discovered on the Moon once made travel to Mars possible, and the settlers who left Earth uncovered an advanced power source they called Aldnoah. With it, they established the Vers Empire and turned their sights on the “Terrans” who remained on Earth. A catastrophic lunar conflict later remembered as Heaven’s Fall destroyed the hypergate and left both worlds locked in an uneasy ceasefire.

Fifteen years later, that fragile peace begins to crack when high school student Inaho Kaizuka witnesses an assassination plot targeting Princess Asseylum Vers Allusia during her visit to Earth, a mission meant to ease tensions between the two sides. The incident reignites hostilities, and Mars declares war once more, forcing Inaho and those around him to confront the Vers Empire in a conflict that threatens to decide the future of both planets.