Summoned as a hero, but ended in need of a hero

Milica is summoned in other world as a hero, among other five people.

The thing is... there are only five legendary weapons, and the high priests of the Kingdom Iana show everyone that she has no special powers, nor the ability to be a good soldier. Obviously, her summoning was a mistake.

They can't send her back to her world, because the high priest is almost in the brink of death after the invocation of heroes. The king decides to get rid of her, because she knows too many secrets. He hires a team of mercenaries, pretending to escort her somewhere safe, far from the palace, to silence her forever.