I Picked Up a Little Werewolf

[Humanity's rampant destruction of the environment has caused severe pollution. Animals and plants have begun mutating one after another. As the years pass, humans gradually disappear, replaced by mutants.]

While chasing a mutated tiger, Lang Xun accidentally falls into a rift in time and travels a thousand years into the past, to the 21st century. Dropping out of the sky, he also happens to injure an "ancient man" who has just climbed to the mountaintop.

Gu Shengsi was heartbroken after his boyfriend cheated on him. He decides to climb a mountain in the middle of the night, hoping the first rays of morning sunlight will heal his wounded heart.

But when you're down on your luck, even water can make you choke. Just as Gu Shengsi reaches the summit, before he can catch his breath, an unidentified object falls from the sky and knocks him unconscious.

Gu Shengsi takes in a homeless silver-haired beauty. The young man is well-mannered and adorable, but he doesn't seem too bright, and might have a few mental issues.

Gu Shengsi: "What kind of species did you say you were?"

Lang Xun blinks his big eyes, perfectly earnest. "I'm a wolf. A white wolf."

For example...

Gu Shengsi asks him, "How old are you this year?"

The young beauty replies, "180."

Looking at the boy in front of him, who seems several years younger than himself, Gu Shengsi calmly nods and says, "Well, you look young for your age..."

Ordinary 21st-century human gong Gu Shengsi x mutant wolfboy shou from the future Lang Xun

Where did you meet your partner? Mine literally fell from the sky.

Theme: Protecting the environment is everyone's responsibility.