After a failed life, the protagonist gets a second chance at life, but this time with a strange manual that guides him through various steps to change his fate. The manual provides him with specific instructions to not only survive but thrive, granting him knowledge and tactics that others don't have. Korean manhwa. Ongoing.

Read Regressor Instruction Manual manhwa in English, updated regularly. Also known as: 회귀자 설명서 · Hoegwija Seolmyeongseo · Regressor’s Guide