Shienryu

Caravans are colony ships that venture into deep space in search of Earth-like planets. Eventually, Caravan 7861 discovered a a suitable planet in another star system. Nearly a hundred years later, the new mother planet became overrun by aliens under the command of the mysterious Shienryu. Fortresses were built with the goal of preventing any human development. Eventually, a special team called Burn Dragoon was established, comprising the best pilots who had to use all their skills against the alien threat.