Best friends Yuu, Haru, and Kotona enjoy a tranquil high school life together. One day, however, a suspicious man pursues and stabs Kotona—a catastrophe that Yuu and Haru fail to prevent. While hastily carrying the girl to the hospital, the two boys are nearly hit by a truck but miraculously remain unharmed. Instead, they find themselves in a fairy-tale-like kingdom with an exotic diversity of people and wonderful creatures.

To their surprise, the boys discover that Yuu, who has been confined to a wheelchair since childhood, can now walk! Yet they have no time to ponder the puzzling situation, as their friend is gone. Setting off to find Kotona, Yuu and Haru stop at a local pub to inquire about her. But upon inspecting a picture of Asha, the kingdom's princess, the two have a shocking revelation.

Narrating an extraordinary adventure in a magical world, Ni no Kuni demonstrates the special connection between two separate yet parallel worlds and its manifestation of the bonds between individuals.

[Written by MAL Rewrite]

Bonus specials released together with the OVA.

Happy-go-lucky short stories of daily lives of the band members of Plasmagica and ShinganCrimsonZ.

Sasha is partnered with Hana as his new Maria. They infiltrate an all-girls academy, forcing Sasha to crossdress, in search of a Qwaser-related artifact called the Magdalena of Thunder which has appeared in one of the students. However, they have some competition in their search of it. (Source: ANN)