I Volunteered to Be the Child's Father

[The aloof immortal venerable bottom x the passionate puppy-like demon lord top] Ye Buci has cultivated the Heartless Dao since childhood. Cold and proud, all he wants is to ascend to immortality. On the day he was supposed to undergo his tribulation, no heavenly lightning appeared. Instead, a four-year-old child, Ye Ping'an, fell from the sky. The boy threw his arms around Ye Buci's neck and started calling him Dad. Ye Buci: ??? How could someone with no cultivation partner have a son? He assumed the child was too young to know what he was saying, but after they tested their blood, it turned out the boy really was his son. And that wasn't all. Ye Ping'an said he had no mother, only two fathers. As for who his other father was, he couldn't remember. He only knew Ye Buci. To find out what had happened, Ye Buci began raising the child while searching for his other father. As the newly appointed Demon Lord, Xie Wuyou's lifelong wish is to conquer the immortal realm and rule the world. On his very first day in office, he heard that the immortal venerable Ye Buci was looking for his son's father. Xie Wuyou had a sudden flash of inspiration. Wasn't this the perfect chance to go undercover? By coincidence, the child's portrait did look quite a bit like him. Xie Wuyou acted at once. He tampered with the blood-testing spirit stone, concealed his identity, and passed himself off as the real deal, officially taking the job as the child's other dad. Xie Wuyou, first day undercover: Love, sons, cultivation partners? My dream is to conquer the immortal realm! Three months undercover: We can talk about conquering the immortal realm later. Can I get into Ye Buci's bed first? One year undercover: Buci, actually, I don't see anything wrong with taking the child's surname. I'm a traditional sort of person. Since we're together, I should take my husband's surname. Ye Buci didn't quite understand, but respected his choice. After all, they already had a child, so he should take responsibility for the other man. Xie Wuyou: Exactly, exactly! Take responsibility for me! Xie Wuyou happily settled into a life in the immortal realm with his wife, child, and cozy home, until one day a man in black showed up with a blood-testing spirit stone, claiming to be Ye Ping'an's other father. Xie Wuyou: The sky is falling! Someone's stealing my cultivation partner and son in broad daylight! Is there no justice in this world? Please note: 1. The child really is the top and bottom's. This is a xianxia world, so they can have a child however they like (x), but they won't have a second (check). 2. The aloof immortal venerable bottom, who originally only wanted to cultivate the Heartless Dao and ascend, somehow ends up living happily as a family of three x the passionate puppy-like Demon Lord top, who originally wanted to conquer the immortal realm, but whose ambitions fall apart halfway through, leaving him to wash his hands of worldly affairs and cook for his wife and child at home. Theme: .