"Much as I like the character designs — so X/1999! — the butt-kicking heroine — so feisty and independent! — and the abundant eye candy — so many handsome vamps! — I have two reservations about Canon. First, Fuui is more of creaky plot device than a sidekick, interrupting moments of playful banter with large, undigested chunks of vampire lore. To some extent, such passages are unavoidable in a short series with a complicated mythology, but Shiomi doesn’t integrate them gracefully — too often, these conversations have the feeling of a classroom lecture... Second, Shiomi has no idea how to bring things to a satisfactory close. "