Fox Demon: I'm in the Dao Alliance, and Rongrong and I Have a Child?

Shen Chen, a lifelong single man. He unexpectedly transmigrated into the world of Fox Spirit Matchmaker. He endured hardship and waited year after year, but the System never came. Forget it. He'd just lie flat. At least, as a transmigrator, he got a flying sword that automatically adjusted its rank to match the strength of his enemies. The sword's rules were simple and straightforward. Against a minor demon, it downgraded to a low-grade flying sword. Against a Great Demon Emperor, it upgraded to a top-grade flying sword. Just as Shen Chen was settling in to lie flat and enjoy a comfortable life in another world, a little girl appeared and shattered the peace. “Are you lost?” “I... I came to find you, Daddy.” So, you're saying that without a System, in an era when humans and demons were at each other's throats, I ended up with a daughter who's a demon?