A Soul-Formation Cultivator Returns to the Insect Race as a Star Beast Killing Machine

(I want to read about the Zerg, strong couples, a dominant gong, and an adored gong. I can't find the kind of story I want, so I'll just write one myself. My writing is terrible and I'm sensitive, so don't be mean!)

Several days after returning to the Zerg world, Chu Mo realizes that he is a cannon-fodder character in a novel.

In the original story, he is one of the protagonists' love interests'... cannon-fodder ex-fiancés. As it happens, in real life, the new fiancé assigned to him by the Main Brain is the unattainable moonlight of the protagonist gong.

To grow stronger and break free from his ties to the protagonist, he fakes his death, flees his engagement, leaves the Capital Star, and disguises himself as a female Zerg to head to the front lines, where they battle the star beasts.

Fifteen years later, he has become a military legend, a star-beast killing machine, and the bravest military commander in the eyes of the military Zerg.

He thinks things will stay this way until his cultivation returns to its peak and he can return to the cultivation world to seek revenge.

But an accident leaves him with amnesia on a desolate planet, where he is found by the very fiancé he has never met, who is also stranded there.