Ruchirukuoutsu no Taikan: Ou no Tanjou

Slaine believes he is an ordinary citizen of the small kingdom of Hasenvalia until a palace fire kills the royal family, revealing him as the king's illegitimate son. He is thrust into the role of ruler, relying on his intelligence and the help of his aide, Monica, to navigate the challenges of leadership. He faces resistance from local nobles and threats from foreign powers. Just before his coronation, the Empire of Galed declares war, forcing Slaine to decide whether to flee or defend his kingdom. As he contends with external pressures and conflicting interests, he must learn to embrace his new responsibilities and become a true king.