This is the most overpowered character you would find who started from the bottom to the top. A thrilling journey and adventure on his path of power and to the absolute peak. In this novel, the MC would always release aura of an F rank as his mojo. (This stops at the ending of the first arc) 1] He won't hold back against anyone 2] There would be no "The strong acting weak" here for any reason at all 3] There is no acting a pig to eat the tiger here 4] There is no holding back or anything.
Lucas Grey wakes up inside a famous novel as the villain. His job is easy—help the hero, earn ten billion dollars, and leave. But things go wrong when the female leads start falling for him instead of the hero. The CEO, the sweetheart, the goddess, and the bombshell all chase after him, turning the story upside down. Now the hero is losing control, the plot is breaking apart, and Lucas just wants to escape the chaos.