The Enemy Is Approaching the City and Summons Esdeath at the Beginning.

Rock traveled to the Endless Continent and became the crown prince of a country that was about to be destroyed. The enemy's army was already approaching the city. He chose to summon Esdeath at the beginning, and tens of thousands of troops were destroyed in an instant. … Esdeath: War is just a game of killing, and I am the eternal winner! Tokisaki Kurumi: Alas, I am just loyal to His Highness. Boya Hancock: Your Highness, please look at me. Payne: Let the world feel the pain! Rock, who is bound to the Summoning System of All Realms, said: What's so fun about war? Why don't we all talk about it calmly? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.