Zombie Sister Strategy - Chapter 10

Our straight (?) bottom woke up ten years into the future and found himself on the bed of his childhood friend… At the start, the bottom was shocked to his very bones, but he soon quickly accepted this premise and found the whole situation to be rather amusing. Precisely then, the bottom once again went back to his timeline — back to when he and the top were just platonic childhood friends.

A good-for-nothing man married a beautiful girl but was kicked off the bed on the wedding night. Furiously, he wrote a bill of divorce and ran away.
He was schemed a car accident in which he nearly lost his life. However, it turned out to be a blessing. He swallowed the soul that passed through the outer world, thus obtained superb medical skills and martial arts.
Later on, with the silver needles and invincible martial arts, he embarked on the road of counterattacks and was committed to his great dreams.

- Description from Novelupdates

Cal was the pride of his guild, the one that other Initiates looked up to. Then he died. So did his guild.His understanding of the world shattered before his death. His guild was nothing compared to others, which meant he was the best of the worst.When Cal was given a second chance, he wouldn’t repeat his mistakes. Who cared about being a [Mage] when it would just mean death? He would survive, even if it meant being something he sneered at in his previous life.A [Farmer].Of course, when did anything go according to plan? Never.

Sometimes, as we go about with our lives, we all happen to think of one specific thought at least once.