Informational mini anime posted on the anime's official Twitter and HJ Bunko/HJ Novel's official YouTube channel.

Based on the manga by Okazaki Takeshi begun in 1990. After a family tragedy, Kagura is left with only his beloved friend Asami for consolation. Meanwhile, there is a war beginning in the spiritual world. Beings known as "Elementalors" call upon power from spirits to maintain harmony in the world by balancing individual forces of nature. Lord Shiki, a water Elementalor, kidnaps Asami in order to use special powers she posesses to retrieve his daughter, who has been imprisioned for nearly destroying the Earth. Kagura discovers that he is also an Elementalor—a very powerful one. He must join forces with other Elementalors to save Asami and prevent Lord Shiki from causing a great imbalance by releasing his daughter. (Source: ANN)

When 20-year-old college student Haruto Amakawa dies in a traffic accident, he does not expect to wake up in an unfamiliar world in the body of a young boy named Rio. As their memories and personas fuse, Rio realizes that he now also possesses magical powers. He is relieved to find that his burning passion for revenge against his mother's murderers has not subsided, despite his newly changed identity. Not soon after, Rio comes across the kidnapped princess of the Bertram Kingdom and saves her without hesitation. To express his gratitude, the king grants him the opportunity to enroll in the Bertram Royal Academy. Believing this to be a new chapter in his life, he is excited to study at this prestigious academy, but life here proves to be difficult for him, a slum-dweller surrounded by the majestic children of nobles. [Written by MAL Rewrite]

When 20-year-old college student Haruto Amakawa dies in a traffic accident, he does not expect to wake up in an unfamiliar world in the body of a young boy named Rio. As their memories and personas fuse, Rio realizes that he now also possesses magical powers. He is relieved to find that his burning passion for revenge against his mother's murderers has not subsided, despite his newly changed identity. Not soon after, Rio comes across the kidnapped princess of the Bertram Kingdom and saves her without hesitation. To express his gratitude, the king grants him the opportunity to enroll in the Bertram Royal Academy. Believing this to be a new chapter in his life, he is excited to study at this prestigious academy, but life here proves to be difficult for him, a slum-dweller surrounded by the majestic children of nobles. [Written by MAL Rewrite]