The tale of Leina Vance, heiress of the powerful Earl Vance, a noble that leaves her palace to train herself as a warrior, and how she encounters the mysterious Fio, a singer with magical powers and owner of the Sword of the Unicorn, currently on the run from the Swamp Witch. The main story has 5 volumes, plus an extra volume that intersects with the others at times.

The adventures of the Treasure Hunter Alice, specialized in OOPArts, who in the middle of her usual competition with her rival Dorothy, discovers there's a mysterious organization also interested in collecting the artifacts. And they seem to think those are the key to opening the "Queen's Gate", the last device Alice's mother was investigating before she suddenly vanished...