A quick note: this story has a happy ending, not a tragic one.
Main couple: Jiang Chun and Bai Ce
Side couples:
Xiao Feng and Xiao Yu (master and disciple)
Bai Zhen and the little fox
Jiang Chun is chased by his senior brother and jumps off a cliff, then transmigrates to the beast world, where Bai Ce brings him back to his tribe.
On the mating day a few years later, Bai Ce confesses his feelings to Jiang Chun. But Jiang Chun is poisoned and has only a few years left to live, so he rejects Bai Ce, claiming he doesn’t like him. He later leaves the tribe, but is ambushed just as he is about to go. He falls off a cliff, wakes up blind, and is chased by a snake. To save himself, he has no choice but to jump into a river…
Bai Zhen happens to pass by and rescues Jiang Chun.
A few years later, the White Tiger Tribe sends a letter inviting Bai Zhen to the wedding of their new chief, Bai Ce. Holding the little fox, Bai Zhen glances at Jiang Chun, the corner of his mouth lifting slightly…
“Little tiger, don’t cry. You won’t look pretty with tear-streaked cheeks. I was going to die anyway; I’ve just lived a few extra years. Take good care of the flute I gave you. You can give it to your mate someday.”
Bai Ce: “A Chun, don’t talk anymore. You’re the only one I’ll ever take as my mate.”
Jiang Chun: “Our little tiger deserves the very best.”
As he spoke, he raised a hand to Bai Ce’s cheek.
Jiang Chun: “Bai Ce, I want to tell you that I like you. I want so much to be your mate, too. But I don’t have much time left. I’m sorry, I’m sorry…”
Jiang Chun: “Bai Ce, take me home.”
With that, Jiang Chun’s hand slipped from Bai Ce’s cheek.
It's still very interesting so far, and the plot is very interesting. Shou was chased by his senior brother when he was in the world of immortality. He found that he was poisoned and only had one power left. After a series of fights, he jumped off the cliff and reached the beast world.