A Mistaken Marriage Match: Record of Washed Grievances - Chapter 66

(Apocalypse Farming, Sweet Pet 1V1) As soon as she opened her eyes, Su Shu found herself reborn two months before the Apocalypse. Before her rebirth, a certain man watched over her and protected her for three years, almost going as far as dragging her home to swallow her whole. After her rebirth, not only did she have to raise her adorable genius niece, but she also had to take care of a wolfish husband. This Apocalypse was a bit different! The pitiful her from her previous life now not only had a heaven-defying space, but also blood-related family, and on top of that, the indulgent spoiling of Tang Dashao, who sprinkled dog food without restraint. Su Shu thought, even if the heavens required her to reset and start over once again, it wouldn't matter. She would just meet Buddha, kill Buddha; meet a ghost, kill a ghost!

Zhang Yang, the office drone, spent his days slacking off with the campus beauty and his nights watching his sister-in-law practice leg lifts. His girlfriend Xiao Man watched him every day, falling deep in thought... Until one day, while straddling Zhang Yang, she unleashed a soul-searching interrogation, “Why did the dean bow to you? Why did the richest man gift you a villa? Why did the tattoo-covered big brother kneel before you, begging you to take his wife?”

He Lang died by his own hands for the sake of his imperial younger brother’s ambition, whom he loved. He was offered to be reborn in exchange for giving up his past romantic feelings. Reborn without the burden of his romantic feelings, he brings with him a manual to new worlds. He wholeheartedly followed the instructions of the manual to complete the tasks, not knowing that the originally slag gong was blackening…
He pleaded to his affectionate Emperor brother to release him, he pleaded to the paranoid prisoner next door, but until the end he remained baffled.
In the end, he discovered that the full name of the manual was – “Slag Shou Cultivating Manual”
Σ (っ ° ° °;) っ!

- Description from Novelupdates

In a world fractured by conflict and haunted by shadows of the past, Kokushibo—the first Upper Moon demon—meets his end, only to awaken in a new life. Reincarnated as Crimson, a child born into a different family, he carries the memories of a past he cannot escape. Burdened by centuries of guilt yet indifferent to the present, he resigns himself to duty—until an unexpected bond with his newfound family begins to thaw his hardened heart. As he struggles between the weight of his past and the weight of the new life, Crimson must decide whether he will remain shackled to his former sins or embrace the possibility of peace.