After one man dies in the real world, he wakes up to find he has transmigrated into Red Riding Hoodie, the worst novel he ever had the misfortune of reading.
As he awakens, he's greeted by the Re: Life System, who tells him his "account" is now bound to the character Hal Schuyler, the original hero of the novel (who is petty and a huge asshole). He realizes he has to change the story to avoid being killed by the main character's sometimes friend, Alaric. But the System has other ideas, not allowing him to act too out-of-character to avoid derailing the plot.