Ryoma Mikoshiba is now a baron! The young noble and his group put the Rhoadserian civil war behind them and make their way to his new territory, the Wortenia Peninsula. However, Ryoma has a lot of work ahead of him. Not only does he need to develop his monster-infested land, but he also has to deal with a neighboring noble who, despite appearances, has his own interests in the peninsula. As Ryoma establishes his new domain, the winds of victory blow his way and his path to sovereignty begins!

Ryoma Mikoshiba begins establishing the Wortenia Peninsula as his territory. But his plans grind to a halt when one of the greatest powers in the western continent, the Kingdom of Helnesgoula, embarks on a military expedition. Queen Lupis, ruler of the Kingdom of Rhoadseria, orders Ryoma to dispatch his army to help with the war effort. Ryoma leads his elite troops on what at first seems like a dispatch that bears absolutely no merit for him. But Ryoma plots to use the topography of the Wortenia Peninsula to reap great gains. And, at the same time, he begins building up relations with the demi-human population which has spent years detached from human contact in the lands of Wortenia...

After Ryoma’s inspired use of thaumaturgy to wash away the enemy, all eyes are on him. Along with Helena Steiner, he stands poised to win Rhoadseria’s civil war for Princess Lupis! But as the war approaches its climax with the battle of Heraklion, the enemy uses schemes and trickery to change the rules of the game. In the midst of betrayal, Ryoma finds his greatest chance yet to suppress the civil war!

Following his fateful encounter with the two warrior slaves, Laura and Sara, Ryoma begins to plot his escape from the O’ltormea Empire. But even as his strength and cunning are put to test, he must come to terms with the reality he might not be able to return home at all. And as Ryoma and his two female companions try to find his place in this new, brutal world, fate's hand reaches out to embroil him in a large-scale conflict that will change both his life and the history of the continent...

High-schooler Ryoma Mikoshiba finds himself summoned to another world by the warmongering O’ltormea Empire. But Ryoma is no ordinary school boy – he has both talent and training in martial arts. Using his skills in martial arts to escape captivity and swearing revenge on the country that summoned him, Ryoma finds himself in a world where he can become stronger by absorbing the life force of whomever he slays – a world that fits his talents to a bloody T. Pursued by the O’ltormean court for killing an important official, Ryoma attempts to flee the border while keeping his identity hidden. But as he does, he encounters two twin sisters - Sara and Laura - an encounter that will change his fate. And so begins the epic tale of a young man and his journey of war and domination!

Ryoma successfully suppresses Rhoadseria’s civil war! But rather than praise, his valiant efforts are met with fear. Scared of what Ryoma might do should she give him too much power, the now Queen Lupis bestows upon him the title of baron and the governance of the Wortenia Peninsula—an undeveloped no-man’s-land infested with monsters and pirates. Relegated to the outskirts of Rhoadseria, Ryoma begins building his territory and planning for domination!

The long-standing upheaval in northern Rhoadseria approaches its conclusion! Ryoma Mikoshiba’s plan has caused countless refugees to flood Epirus, who clash with its citizens and plunge the city into chaos. In the midst of this violence, Signus decides to cut a new path with his own two hands. Meanwhile, Ryoma uses Lady Yulia to achieve his goal. However, this act only sparks animosity among the country’s nobility. As the war rages on, new conflict approaches from the south. Ryoma relishes in a momentary victory, but new clouds of war brew over him!

The O’ltormean invasion war against the Three-Kingdom Alliance reaches its conclusion thanks to Ryoma’s efforts. In so doing, Ryoma forms a powerful connection with Xarooda’s king, Julianus I. With these achievements under his belt, Ryoma makes his triumphant return to his domain in the Wortenia Peninsula. However, Sudou and his Organization continue to act in secret, sowing chaos throughout the western continent. Seeing Ryoma’s influence and realizing the threat he might pose, they begin to weave dangerous new plots... The fantasy epic of a young leader and his strategic plays reaches its tenth volume!

Having become the Baron of the Wortenia peninsula, Ryoma Mikoshiba seeks to broaden his influence. And yet, Ryoma learns that Count Salzberg seeks to take advantage of him. Ryoma exploits the count's weaknesses and strikes a deal that earns him his full cooperation. He then sets out to suppress the peninsula itself with the slaves he liberated, but an unexpected encounter awaits him in the lands of Wortenia... The fantasy story of a summoned man's journey to domination reaches its sixth volume!

High-schooler Ryoma Mikoshiba finds himself summoned to another world by the warmongering O’ltormea Empire. But Ryoma is no ordinary school boy – he has both talent and training in martial arts. Escaping the O’ltormea Empire, Ryoma finds himself caught up in a conspiracy. With him and his newfound companions backed against the wall, Ryoma must cooperate with the princess of the princess of Rhoadseria to resolve an upcoming civil war. Proving his strength, Ryoma begins to advance down the road to domination.