The Gravekeeper Is the Lion King

Jax, a junk collector hiding his identity as the War God's heir, watches Nova—the Aries commander who came to marry him—poisoned and left to die in the arena. Breaking his seal, he awakens the divine mecha Golden Lion and crushes his enemies. With Nova by his side, he rebuilds order—but a colossal interstellar mothership looms over the wasteland.