Bundled with the 9th volume of the original novel, it is the unaired 13th episode of the TV series.

Completing every job with ruthless accuracy, Train Heartnet is an infamous assassin with no regard for human life. Donning the moniker "Black Cat" in the underground world, the elite killer works for the powerful secret organization known only as Chronos. One gloomy night, the blasé gunman stumbles upon Saya Minatsuki, an enigmatic bounty hunter, and soon develops an odd friendship with her. Influenced by Saya's positive outlook on life, Train begins to rethink his life. Deciding to abandon his role as the Black Cat, he instead opts to head down a virtuous path as an honest bounty hunter. However, Chronos—and particularly Creed Diskenth, Train's possessive underling—is not impressed with Train's sudden change of heart and vows to resort to extreme measures in order to bring back the emissary of bad luck. This assassin turned "stray cat" can only wander so far before the deafening sound of gunfire rings out. [Written by MAL Rewrite]

Hidden in the backstreets of the Ginza district is Eden Hall, a lone bar operated by Ryuu Sasakura, the prodigy bartender who is said to mix the most incredible cocktails anyone has ever tasted. However, not just anyone can find Eden Hall; rather, it is Eden Hall that must find you. Customers of varying backgrounds, each plagued with their own troubles, wander into this bar. Nevertheless, Ryuu always knows the ideal cocktail to console and guide each distraught soul. [Written by MAL Rewrite]

Two years ago, Junichi Tachibana had a date on Christmas Eve but was stood up instead. Since then, he has had a hard time showing others his true feelings in fear of being rejected again. However, as luck would have it, Junichi may have a second chance at love when he meets several girls whom he becomes romantically interested in: Haruka Morishima, the energetic and popular upperclassman with a love for cute things; Kaoru Tanamachi, his childhood friend who harbors secret feelings for him; Sae Nakata, the timid transfer student who is shy around men; Ai Nanasaki, a girl on the swim team who has a bad first impression of Junichi; Rihoko Sakurai, a childhood friend with a love for sweets; and Tsukasa Ayatsuji, a seemingly perfect class representative who has a hidden dark side. As Christmas Eve approaches, Junichi can only hope that this will be the year he will finally spend the holidays with the one he truly loves. [Written by MAL Rewrite]