Fu Yushan gripped Chu Yize's left hand, squeezing as though he wanted to crush Chu Yize's bones. "Chu Yize, I'm telling you, you can't leave my world without my permission!" Chu Yize looked at Fu Yushan calmly, then lowered his eyes. His long lashes cast lovely shadows beneath them. He said nothing, but smiled and mouthed three words. It was many years before Fu Yushan learned what those words meant.
Are you sure it's BL??