Competing with a Transmigrator for Senior Brother

[This story is told in third person.] Not your traditional cultivation story! Math and science wreak havoc in a cultivation world riddled with transmigrators. A mix of transmigration and rebirth, slow burn, powerful leads who dote on each other, and a plot-and-romance-focused comedy full of absurdity! The hardships and schemes are just background dressing. No master-and-apprentice farming, no secret-realm expeditions, no auction-house treasure grabs, no martial arts tournaments, no fighting monsters to level up! [Starting paid chapters on April 8, with a massive 10,000-word update! Chapters 25-37 will become paid. If you've already read them, don't buy them again!] Jian Tiancai, a royal guard, has one mission: eliminate transmigrators. He thought it would be easy, until he entered the cultivation world and discovered all sorts of powerful transmigrators. He was just an ordinary, middle-aged mortal. Jian Tiancai met every challenge head-on without fear. Along the way, he even rescued a frail, beautiful cultivator, who turned out to be the sect's senior disciple. The senior disciple had two baffling traits: first, transmigrators were especially drawn to him; second, he was especially devoted to Jian Tiancai. Jian Tiancai: ...All right, suit yourself. Just don't get in the way of my work. The senior disciple, reborn for a second time, only smiled and said nothing. A down-to-earth, ruthless top who puts the mission first and never takes the usual path X a beautiful, dramatic bottom This story could also be called "A Mortal's Comeback," "Big Shots Playing House," or "Those Years Spent Hunting Transmigrators in the Cultivation World." Dumb, absurd comedy, quirky appeal, and an eccentric imagination [My new story is on my author page. Top protagonist: "The Old-School Top Battles the System Bottom." Another familiar, silly, heartwarming story awaits you!] Completed original stories: "Wang Xie Leaves Yan Hua," "Searching for the World Beyond the Grass," "A Man Should Wield a Sword," "What Should I Do If My Dual-Cultivation Partner Took My Soul?", "Fellow Daoist's Fluffy Tail," "Interstellar Observer," "Interstellar Big Bad Wolf," "The Rebirth Handbook Is All Lies," and "Senior Brother Doesn't Ascend," among others. Theme: Mortals may be weak, but they can still use their wits to defeat their enemies and uphold justice.