After becoming a cannon fodder villain in a book, the heroine confessed her love to me

Qin Yunshuo woke up and found himself traveling to a fantasy novel with a heroine in the style of Feng Aotian's upgrade. However, this identity was a pain in the ass. He was a villain, but not the final boss. Instead, he was a high-level cannon fodder who bullied the protagonist in the early stage, was killed in the middle stage, and even his corpse was used in the later stage.
Fortunately, there is also a system that allows people who traveled through time with him to become stronger and stronger as long as they maintain their villain character, and eventually change their fate.
But who can tell him why, while he was diligently playing the villain, the way the heroine looked at him became more and more wrong?
(Minesweeper, single female lead, happy ending, and most importantly, this is a romance novel disguised as a fantasy novel, so don't read if you don't like it)

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