As a child, Thorfinn sat at the feet of the great Leif Ericson and thrilled to wild tales of a land far to the west. But his youthful fantasies were shattered by a mercenary raid. Raised by the Vikings who murdered his family, Thorfinn became a terrifying warrior, forever seeking to kill the band's leader, Askeladd, and avenge his father. Sustaining Throfinn through his ordeal are his pride in his family and his dreams of a fertile westward land, a land without war or slavery … the land Leif called Vinland.
(Source: Kodansha Comics USA)
The anime centers on Yukiya, who is "probably" 14 years old. He spends his time DJ-ing alone. Due to his father's influence, he's listened to house music since he was young, and he uploads videos online. He wants to convey something to someone. He wants to be recognized, and become important. But getting hurt is scary. One day, while trying to get more views, he does something that can't be undone. And he sees a live broadcast from "that world." Yukiya believes he can't do anything alone, but that he could accomplish something if he were doing it together with someone else.