The Leywin family travels to the floating city of Xyrus so that Arthur can begin his formal education in magic. The adventuring party that Reynolds and Alice belong to, the Twin Horns, accompany them as guards, when they run into something unexpected...

Having arrived in the city of Xyrus, Arthur is thrilled to meet his younger sister, Eleanor, and to reunite with his parents. While sparring with Reynolds, he demonstrates how much he has grown. After witnessing Arthur's strength, Vincent Helstea proposes that the reborn king enroll in Xyrus Academy, a prestigious sorcery school.

Having arrived at Xyrus Academy, Arthur displays his skills to the school’s director, Cynthia, who proves to be every bit as formidable as her position as the head of the prestigious magic academy suggests. Despite being overwhelmed, Arthur still shows his power and the two strike a deal...

Donning a mask and taking up the alter-ego of Note, Arthur arrives at the guild to begin service as an adventurer. He has new encounters meeting Elijah, a young boy with ties to dwarven royalty, and Lucas, a half-elf member of the Sapin royal family. Afterwards, Arthur and Jasmine leave on their first adventure together. In order to protect those he cares for, the king seeks even greater power.