He wants to find his own way of chivalry! Theor, a young boy born into a family of assassins, was branded "incompetent" by his uncle, the head of the family, and banished. Because Theor's stealth skills were so high, no one in his family realized that he was also a powerful assassin magic user...! Taking his banishment as an opportunity, Theor decides to become the knight he has always dreamed of becoming, and joins the Sixth Knights of the Kingdom of Oikot. While carrying out missions using assassin magic alongside his senior knight Lina and other unique companions, the former strongest assassin awakens to his mission to protect the people! From an assassin who takes lives to a knight who protects the people - the story of this former assassin and unrivaled knight begins! (Source: Kadokawa, translated)

Sequel to the second Ar Tonelico PS2 game. Having returned to Metafalss after winning the battle against the \[Goddess\], Croix and the others have begun preparing for \[Metafalica\], the Song Magic that will create a continent. The people’s expectations and anxiety, as well as fear of its failure weigh heavily on the Maidens Luca and Cloche. There is a girl who harbors mixed feelings as she watches the people from the satellite Sol Marta, high in the skies of Metafalss. Her name is Infel. The first \[Maiden of Mio\] who despite perfecting the Song Magic \[Metafalica\], was unable to weave a continent. The story of Infel and Nenesha from 400 years ago is at last told. What feelings did the two pairs of Maidens who devoted everything they had to the creation of the continent hold?!