Lena, a girl transported to another world as a hero, finally strikes down the Demon Lord.

However, the Kingdom, fearing her immense power, stripped her of all her equipment and confined her to a prison for later execution.

There, Lena receives advice from the demon Disease, who was also imprisoned, and awakens to her true ability—"Complete Domination."

It is the power to infuse magic power through a kiss, dominating and freely controlling the target.

As a first step, she proceeded to dominate the princess who betrayed her—