Also known as A Low-Rank Male Zerg
The mad, ambitious schemer Ax disguises himself as an innocent, harmless D-Class male zerg and sets his sights on the Empire's greatest weapon: Yisesi, a fallen war god humiliated by his male master.
His plan begins with a carefully staged “accident.”
At first, he is merely the sharpest weapon on the chessboard of ambition.
Later, he becomes the one weakness you would protect even while conquering the Empire.
The once-fallen War God, Yisesi:
“This male zerg... is the only surprise in my life.”
“My war blade yearns to clear every thorn from your path.”
“Ax, my Lord. My faith, my life, my everything: I offer it all to you.”
As the decaying throne collapses amid stardust, Ax removes his mask of innocence and is crowned king atop a bed of thorns.
It's not bad. Zerg novel is not bad. Is the protagonist Shou someone else's wife?