Master Sergeant Alex O'Connor, a drill instructor in the US Army is summoned to another world. He is asked to save the Frethielian Kingdom that used to be a superpower for thousands of years. But the Karenth Empire caused their downfall and are now a puppet of them. How will Frethiel and O'Connor survive. Note: First part is rushed.

The story follows Kazuya Souma, a humanities-student-turned-hero as he pulls on his knowledge of realism and machiavellianism in order to rebuild the kingdom. This story continues almost two months after the New Year and miraculously another Hero was Summoned. This one a complete opposite of Souma. For this one is a true Warrior but this new one has some interesting faults.