Aging with My Wife in a Strange World [Infinite]

New project, top protagonist: Is There Anything Wrong with a Green Tea Top? [Quick Transmigration] Completed story about little ones: Raising a Human Child in an Angsty Novel [Quick Transmigration] Completed story about little ones: A Mama's Boy Can't Be a Villain [Quick Transmigration] Completed story about little ones: My Kindergarten on Garbage Planet [Interstellar] Blurb: After a thousand-year dream, Qin Fu'an wakes in the modern world, where spiritual energy has run dry. He had already planned to lie flat and wait until his cultivation faded and he turned into a dead snake, but then he was unexpectedly dragged into an infinite-game instance. Everyone knows that creatures like dragons and snakes follow their instincts when it comes to love and desire. When they find someone they like, they want to carry them back to their nest and hide them away. The first person he sees after entering the instance is his NPC deskmate. The other is a cold, eerie being, but his soul can secretly send out tendrils to find Qin Fu'an, flirt with him, and beg him for food... Qin Fu'an's pale green eyes reflect his little deskmate's tightly pursed lips, drawn that way in embarrassment. Suddenly, Qin Fu'an thinks this so-called infinite game is awfully generous. It gives players a wife from the start. Qin Fu'an is a decent actor and doesn't snatch the NPC away right off the bat. On his nth instance of pretending to be proper while raising his wife, he finally receives a high-risk main mission. [Completely contain the Lord of the Ghost Domain] Qin Fu'an stares intently at the words with his dark green eyes. After a long moment, he lets out a low chuckle. What a coincidence. The so-called Lord of the Ghost Domain is the darling wife he's painstakingly raised across all those instances. Even more coincidentally, when the last instance ended, Qin Fu'an had been planning to find his wife in the new instance, make their relationship official, then bring him home to cuddle and sleep together. According to the rules, containing a ghost means restricting its powerful aggression while also controlling and protecting it in some sense. If that's the case, then bringing his wife back to the real world and keeping him tucked away in bed for good must be the perfect containment method, right? Besides, the game never said he couldn't have a romantic relationship with his own containment target. Once again, he has to marvel: This game sure is generous with the wives it hands out! A sly nonhuman top with a little bit of bking energy. A lovestruck bottom with plenty of tricks up his sleeve, but who's easy to raise. ★ Reader's guide: [This is my first time writing a pure-love infinite-flow story. I'll do my best to make it better.] [Top protagonist, not scary. Half plot and half romance, more or less.] [Leveling up, fighting monsters, and a sweet little romance.] Theme: Dead wood will bloom again, and you and I will meet at last.