The final boss chooses the end.

A story where the Demon King, the strongest final boss, confronts the heroes. → A story about the Demon King searching for or training heroes capable of defeating him. The Demon King desperately desires a hero worthy of 【The End】. The Demon King yearns for a fierce final battle worthy of 【The End】. However, reality rarely goes as planned. So the Demon King, envying the 【End】 he longed for, began to move of his own accord for the final confrontation. ※Currently wandering the continent together with a 'Hero.' The ratio has become Fantasy >> Comedy.