A non-canon story based on the Rumbling Angel card game. Features some new characters and the return of an old one.

Takeru wakes up from his house and notices that Meiya and Sumika aren’t around. He goes to his school to find Gohda Jouji stopping him and challenging him to a card game, but is interrupted by Nanase Rin, a first-year student. After Nanase beats Gouda, she realizes the current Takeru is from another world and teaches him how to play, and gives him her brother’s deck. Takeru then goes around challenging his classmates, beating them.

After he beats Sumika, Nanase challenges Takeru to a duel – when Takeru wins Nanase reveals that her true goal to collect a large amount of “Ars Magna” and revive her deceased brother. Yuuko, however, interupts her attempt, and reveals that Nanase’s brother is still alive but captured, along with the Shirogane Takeru of this world. The story ends with Takeru, Nanase, Meiya, Kashiwagi, Sakaki, Sumika, Ayamine, Miki, Mikoto and Gouda going to Sweden to rescue Nanase’s brother and Takeru.