Her Sentinel Has Been Reborn

[In Progress] ▌Bai Xing x Pei Shuoye ▌Brilliant, handsome female Guide x fiercely competitive, devoted male Sentinel The year 2056, the thirtieth year since Sentinels and Guides appeared among humanity. Life across the globe underwent massive mutations, and continent after continent fell. Humanity retreated to Eurasia and began a prolonged battle against the pollutants. That year, D-rank Guide Bai Xing crossed thousands of miles to the central district to reopen a classified, bloodstained file sealed away more than a decade ago and fulfill the childhood marriage pact she'd made. Bai Xing knew the road ahead would be difficult. She was ready to face obstacles and endure countless hardships. Instead, as soon as she arrived, she picked up an obedient little puppy. The puppy obeyed her every command, ready to go wherever she pointed. If she wanted to cause trouble, he helped. If she wanted to beat someone up, he rolled up his sleeves. If she went against the rules, he went along with her. Bai Xing: Huh? * Pei Shuoye was reborn. In his previous life, he was a friend of Bai Xing and Qi Shen, and had risked his life alongside them countless times. He watched Bai Xing exhaust herself helping Qi Shen out of danger time and again, saving him from the jaws of death. The two bickerers went through countless hardships, and just as they were about to see the dawn of peace, Bai Xing died in an instant. Afterward, Pei Shuoye often wondered: if he had been by Bai Xing's side back then, she never would have died. No, if he had been Bai Xing's Sentinel, she wouldn't have gone through those hardships in the first place. After being reborn, Pei Shuoye heard his friend once again gossiping about his fiancee, whom he hadn't seen in years. She was spoiled, willful, and arrogant, and a useless good-for-nothing pretty face. With everything starting over, they were about to face countless hardships once more. Pei Shuoye thought: Bai Xing is so wonderful. You can't repay her kindness with betrayal. * Puppy Pei asks himself three questions every day: Did my wife kiss me? Did my wife hug me? Did my wife say she loves me? ▌Reading Guide: * One-on-one romance, happy ending, fake male homewrecker gets the girl. * Male Sentinel and female Guide, two equally strong leads, post-apocalyptic future setting. * Unintentional center of attention, lots of unrequited crushes, and a battle of competing suitors. * My own take on the Sentinel and Guide setting, with tons of original worldbuilding. * I've changed the premise of the story I previously announced. I bow in apology like a tiger diving to the ground. I've tried writing the opening over a dozen times and just can't get it to work. QAQ. Theme: The brave win love.