At a remote hot springs lodge, Yona and the team rest. The boys are taking a bath with the exception of Ki-ja, who looks troubled. Jae-ha takes this chance to tease him, unwittingly finding a mark linked to the previous White Dragon—whom coincidentally is also Ki-ja's father—prompting Ki-ja to recall their complicated relationship. In another time and place, Son Hak and the dragons banter as they hold a drinking contest. As they start to doze off one-by-one, Zeno dreams of his past, where his abilities and experiences, both as a person and as the Yellow Dragon, are revealed.

In a magical world where humans, demihumans, and oni are heavily at odds with each other, a princess named Saltorine Sally Aldike is on a journey to find a person named Mikoto Kibitsu. Traversing the world, Sally comes across many truths that she had been ignorant of due to her lineage—including the knowledge that the oni possess power potent enough to wipe out humanity. Seemingly blessed with a way to counter the oni's might, Sally has a strange power that manifests itself as a sigil resembling a peach, giving her superhuman abilities capable of defeating powerful oni with ease. Even so, Sally refuses to discriminate between humans, demihumans, and oni as much as possible, believing that peace between the three factions could be attainable one day. On the contrary, Mikoto—who also has the same ability as Sally's but with greater mastery—has a different goal. Mikoto is out to kill and torment all oni in existence, stopping at nothing to fulfill this objective. As Sally and Mikoto continue to cross paths, the power they possess will spell the difference between amicable coexistence and utter annihilation.

In a shocking turn of events, humanity has won its first battle in the Ragnarök tournament—a series of 13 fights that will decide the fate of mankind. Zeus, the head of gods, sends the demigod Heracles for the next round to avenge the humiliated Greek pantheon. To face this hero loved by gods and humans alike, the Valkyrie Brunhilde decides to use Heracles' complete moral opposite: the infamous serial killer Jack the Ripper—leaving human beings unsure who they should support. Meanwhile, tensions begin to rise between various divine pantheons, and rumors of a traitor jeopardize the unity of those who want to annihilate humanity. As the line between friend and foe becomes blurred, Brunhilde will do everything she can to make her machinations successful.

With a cartload of fur pelts in tow, traveling merchant Kraft Lawrence stops by the village of Pasloe. According to local folklore, centuries ago, one of the villagers made a promise with the wolf deity Holo, who swore to bless Pasloe with bountiful harvests of wheat. Yet, as time passed, such stories became little more than relics of the past. After quickly finishing his business in the village, Lawrence sets out to his next destination. His journey, however, takes an unexpected turn when he discovers a nude, animal-eared girl sleeping among his pelts. Even more surprisingly, the youthful-looking woman claims to be Holo—the wolf of legend. Holo wishes to return to her hometown in the north, and though their first encounter is rocky, she convinces Lawrence to accompany her on her travels. In return, she vows to earn her keep, using her quick wits and lifetime of experience to help her newfound companion in his dealings. As they continue their journey, Lawrence and Holo take advantage of whatever economic opportunities they come across, often landing in situations that put both their business skills and their relationship to the test.