Ryosuke, an aspiring light novel author who had been posting novels on a free online submission site, gets into an accident on the release day of the first volume of his first published novel, "Hero Reincarnation."

When he comes to, he finds himself in the world of "Hero Reincarnation," the novel he wrote.

He had been reincarnated as Margrave Carlo de Medici, the hero's greatest rival and a popular villain.

There are still five years until the hero's reincarnation.

Ryosuke, as Carlo, decides to play the part of a splendid villain and lead his own unfinished story to its ending—

This is a story where the timid, considerate, conflict-averse 22-year-old virgin and figure-loving otaku protagonist, while gathering allies like the strongest knight (a hottie), a masked mercenary (big-breasted), a mage (cat-eared girl), a female thief (legally loli), and a butler (bald), desperately strives to become a magnificent villain, acting as the bold, uninhibited, and arrogant villain Carlo. It's a tale featuring comedy, seriousness, a dash of ecchi, and otaku elements.

It's a light-hearted story packed with amusing tidbits.