Summoned to another world- RPG

You are summoned to another world, into the kingdom of Keldeo. The king, a stubborn and selfish man, ordered your summoning as a potential hero, to save the kingdom from the Demon Lord. All who are summoned, are bestowed a heavenly blessing, that gives them hero status. However, upon being summoned, the royal mages do not detect a single heavenly blessing within you. Believing your summoning to be a failure, the king orders your exile to the Dark Forest: a forest that is filled with powerful monsters, bordering demon territory. Unbeknownst to you and the kingdom, there is a dormant power within you, that will only be awakened after defeating a strong monster. (A power of your choosing.)