The time has come at last for Antrim, led by Bard, to battle the Kingdom of Haurelia. Antrim faces overwhelming odds, but Bard’s knowledge of modern military tactics gives his outnumbered forces a fighting chance. Before the fight is over, however, Bard must go one-on-one in a battle to the death with Borodino, his most fearsome opponent yet. What surprising strategies will Bard employ against his deadly foe?

The spy Sobat has managed to deliver key tactical information on Antrim, Bard’s territory, to enemy kingdom Haurelia. Haurelia’s vast army takes up arms and advances on Antrim. In addition to a punishing frontal attack, Bard must grapple with a dissident movement in his own realm. Will he be able to protect his citizenry, vassals, and loved ones—or is tragedy about to unfold?

On the orders of King Welkin, Bard has become ruler of the realm of Antrim. With the help of his new chief secretary Agatha, plus trusty pals like Brooks and Nelson, Bard works hard to return Antrim to its former glory and beyond. But one day, Agatha receives a letter that leads her and Bard into a frightful conspiracy!

Bard and trusty companions have accomplished a seemingly impossible mission—a feat that’s made them all famous. Following success at sea and in the royal court, Bard returns to his home, the Kingdom of Mauricia, to receive a reward from the king. But that reward comes in a very unexpected form!

Bard has traveled to the Kingdom of Sanjuan as a goodwill ambassador and found himself in the midst of a family feud. On top of a fight for the throne between two queens and their sons, there’s a behind-the-scenes struggle between the kingdom’s military and its nobles. To help preserve the peace, Bard heads out with the bodacious Urraca and her trusty sailors to defeat a band of nasty pirates. It’s a seafaring battle you won’t want to miss!

Bard Cornelius is no ordinary nobleman's son. He's got two extra souls packed into his mind: Sanai Oka, a miserly samurai, and Masaharu Oka, a high school otaku who loves animal ears. Bard, who saved the royal family from cholera and received a noble title, visits the neighboring kingdom of Sanjuan on the orders of King Welkin. But what awaits this newly-minted diplomat in Sanjuan is an ugly battle of succession to determine the next king, triggered by the death of the king's eldest son. Now Bard must turn to his trusty cheats to save the kingdom from being torn apart by family turmoil!

Bard Cornelius is no ordinary nobleman's son. He's got two extra souls packed into his mind: Sanai Oka, a miserly samurai, and Masaharu Oka, a high-school otaku who loves animal ears. Bard continues to churn out invention after invention, earning him huge piles of gold and even the attention of the king. But before too long, villains lurking in the capital stealthily attempt to hinder Bard's progress! As Bard dodges one disaster after another, his rise to the top accelerates!

Bard Cornelius is no ordinary nobleman's son. He's got two extra souls packed into his mind: Sanai Oka, a miserly samurai, and Masaharu Oka, a high school otaku who loves animal ears. He's left his homeland and traveled to the royal capital, Cameron, to enter an academy for knights. There, he's met by a host of intriguing classmates. Pursuing both knowledge and money, Bard aims for even greater heights! His topsy-turvy academy arc has begun!

Bard Cornelius: the son of a nobleman of Mauricia, an empire located in a parallel universe. But Bard is no ordinary boy—he’s got three souls packed into one body! Aside from his own consciousness, he’s got Oka Sanai, a miserly samurai, and Masaharu Oka, a high school otaku who loves animal ears. With his extra knowledge of military tactics and business acumen, Bard’s ready to cheat his way to the top! Get ready to enjoy the manga version of this hit isekai light novel series!