In a world ruled by the God of Light, the God of Darkness, and a rather unconventional Wicked God.

The Sacred Light Church, the dominant power in this world, was slowly losing its authority.

In a desperate attempt to restore their prestige, its frantic leadership pushes through the Hero Summoning ritual.

However, due to the intervention of an even more idiosyncratic Wicked God, the summoned young man was bestowed with a problematic skill.

Creating a stir and becoming a hunted man, the young man meets a certain girl, and together they confront the injustice.

Can he truly return safely to his original world...? That is "up to luck."