That Time I Got Transmigrated as a Background Character

[WSA official entry.] Starting with our main character waking up to find himself in the body of a minor villain from the novel "Age of Heroes" named Kayden Ashbourne. He realizes there's no need to alter the story since the previous occupant had already committed every mistake typical of a minor villain. Kayden Ashbourne fits the mold of the typical arrogant young master often seen in academy arcs in web novels. Our protagonist, now inhabiting this 18-year-old's body, faces a dilemma. While he could choose to live quietly and let things be, the world he's landed in is on the brink of change, and his family is getting pulled into the chaos, whether he likes it or not. Now he was in a hurry to find something to protect himself and his actions directly lead to the original plot derailing and he finds himself dragged into the center of many conflicts happening in the world.