Roaring Heroes Battle the Overlord (Ainz)

It borrows the world and characters from the anime "Overlord," but the plot is entirely original.

This is not a light and pleasant story about a great, glorious, and righteous hero challenging an evil Overlord.

On the contrary, it depicts a female character with significant flaws, fighting the toughest and most brutal battles against the Overlord in a dark world, and growing through these conflicts.

There are two main characters:

One, a quirky yet powerful girl.

The other, a mature and steady male adventurer, albeit weak.

They embark on a journey to battle the most powerful evil Overlord, Ainz Ooal Gown.

So can they succeed?

Note: There is almost no romance plot.