Teihen Ryoushu no Kanchigai Eiyuutan

The Bottom-Tier Baron's Accidental Rise to the Top synopsis: In the Barony of Babalon, where barbarians clash and blasphemous believers speak their minds, young Rize Babalon unexpectedly inherits the titles of Baron and the barren Barony of Babalon. However, as he attempts to take over, the rank-and-file citizens rise against him in an attempt to seize power. To save himself, Baron Rize resorts to his best skill—sucking up to the citizens. In a world where magic is the divine might that upholds the rule of nobility, Rize decides to use it to benefit the citizens, leading to an unforeseen surge in approval ratings. Now hailed as a savior, Rize finds himself unintentionally caught in a revolutionary wave, navigating through unexpected challenges as he tries to achieve his simple goal of relaxing by the seaside. (Source: Mangamonster.net)