Her Strongest Ability Is Begging for Mercy, the Frustrating World Conquest Adventures of a Former Demon King

Story:

Village girl Chelsea, who is beloved by everyone, is actually the reincarnated ex-Demon King. However, when she reincarnated, for some reason neither her magical powers nor skills were inherited, and she was forced to live as a normal human being. Humiliating days continued until one day, the remnants of the Demon King's army appeared to loot the village. Hunted down by her former subordinate, who did not realize her true identity, Chelsea finds herself in a perilous situation. Then, a skill finally manifests! The name of that skill is "Begging for Mercy"!?