Space Battleship Yamato Next: Star Blazers Lambda

From Yamato Magazine:
In 2099, the human race was suddenly attacked by Seireness, unknown giant life forms that emerged from space and killed more than a billion people. Five years later, a boy named Yu who lost his mother Maya to the Seireness turns 12 years old and aims for the frontline base at Jupiter as a cadet for Topness, who oppose the Seireness fleet. Can he clear the launch test? Can he defeat the enemy who claimed his mother? In the midst of this, Seireness launches an attack after five years of silence. People are horrified by their beautiful but ugly appearance

Official Japanese