Hydra, Lovers and Souls, and Vanity.
Rules 3 parts-Rules Dj - Real Thing;Hikaru and Kagami. Before Hikaru knew Tooru, Yuki and Atori; Rules - 2nd Season; Follows directly after the events in Rules volume 1 Chapter 6 & Extra this continues the tale of Hikaru, Yuki, & friends. A glimpse into Hikaru's life, past, and feelings;Another Day On The Planet and Rules Dj - Song Birds.
Lovers and Souls