Well is forced to participate in the kingdom`s martial arts tournament due to his nobility. However, he quickly gives up hope of winning when he learns that magic is prohibited in the tournament. Meanwhile Er, Iina, and Louise also decide to participate. While Er was taking it lightly at first, certain developments cause him to promise that he`ll win it.

Now that Well and the others are 15-year-old adults, they officially form their adventuring party, the Dragon Busters. However, before they have time to enjoy adventuring they receive a mandatory quest from the kingdom and venture deep into ancient underground ruins that no one has yet to return from alive. Well and the others are transported deep underground by a trap, and what awaits them there is...

Well receives an enormous reward for his exploration of the ancient ruins, garnering the envy of other nobles. He also learns about the rumors of his death. So when Well decides to leave the Capital, he asks Roderich, the man who constantly sought to become his retainer, to take charge of his mansion. Roderich is moved to tears and immediately begins acting to pin down the culprit behin the rumors.