I'm not Yingjie

This book is also called "Starting as a Fire Moth Soldier". It tells the story of the protagonist Lin from his student days when he talked and laughed with Kevin to joining the Fire Moth to fight for humanity, from a small soldier to a hero of humanity. It makes people feel that such a great power is hidden in a small Fire Moth. He drives a Titan, kills the Herrscher, collects concubines, becomes a hero, and reaches the peak of his life...
"..."
“How’s my novel?”
The pink-haired girl smiled sweetly and asked the helmeted man who was holding a novel.
"Boring." After saying this coldly, he returned the novel to the girl and turned away.
The novel's dramatic plot is as beautiful as the smile of its creator.
But he is not the protagonist of the novel. He is neither a human hero nor a fire-chasing hero as a fusion warrior.
The first failed fusion warrior, a ruthless weapon against Honkai, the sole user of the Blank Key... He has been called many things, but he doesn't care.
He is just a soldier, a soldier standing in the torrent of collapse and times, experiencing suffering and battle.
He is the person farthest from beauty.