The Lapis Lazuli Crown(2003)

Lapis Lazuli no Oukan

The assistant to a sorceress with strange powers, Mieru meets Radi on the street. He has the same name as the prince she has admired but he's the exact opposite! From him, she receives the Lapis Lazuli, a charm for increasing magic... (Source: Vampire Knight)

Included one shots:
Volume 1: Daisy Romance