I Became the Novel's Substitute, but Fell for the One He Truly Loved?

I Reincarnated as the Novel's Substitute, but Fell in Love with the Beloved

Qin Biyi & Lin Lizhi, GL, debut author, two strong leads, both devoted only to each other, happy ending, sweet at first, then angsty, then sweet again ^O^ Please go easy on me, my writing isn't great.

Beautiful and clever pursuer & a doting, well-rounded top, skilled in both letters and martial arts

“Through countless cycles of reincarnation, I have loved only you.”