Based on the RPG game of the same name. Aurica Nestmile is a young Reyvateil, or "singing maiden" who feels her song magic is not of much use to anyone. From high up on the tower Ar Tonelico comes Lyner Barsett, whose airship is totaled upon impact with the ground. These two meet up, and in the search for someone who can repair the ship, end up helping both each other and themselves.

As an expression of gratitude for the heroes of both the ".hack//Sign" and the ".hack" game series, Helba has prepared a special event for all the characters to find the newly established "Twilight Hot Springs." The characters can get their well deserved rest and relaxation by having a soak in the wonderful hot springs, but there is only one problem—the hot springs are hidden and there have been mysterious player murders. With the only clue being the word “GIFT," the race has begun to find the culprit and the location of the hot springs. [Written by MAL Rewrite]

Kyoya's father was a great warrior, killed at the hands of the diabolical psychic, Rebi Ra, who has now opened a portal to hell in the city of Shinjuku. It falls to Kyoya to finish what his father started and battle his way through demons, while protecting a young woman from harm. The only problem is that he's not exactly your classic hero type, and his powers are still latent.

This is a special episode of Lovedol. It's also called episode 13 of the series. Lovedol, or Lovely Idol, is a girl group consisting of two generations of idols. The 3rd Generation is about to make its debut, but to their surprise, they have been delayed! The vague reason is only that "they lack something." The manager, and the 3rd Gen. girls too, must find the answer.