Legendary FBI Detective

Roan transmigrated as an FBI investigator.
Several years later, a journalist interviewed the world-renowned detective Roan Greenwood and asked,
"What made you persist in solving cases for so many years?"
Roan tilted his head and glanced at the sports car beside him, the villa behind him, and the beautiful woman inside the villa. He smiled slightly and said,
"Well, the bonus after solving the case."
"What?"