Under the Rose contains two stories:

Winter's Tale (Fuyu no Monogatari):
In the late 19th century England, Grace King was the daughter of a declined Marquis and also the mistress of Count Arthur Roland. After her mysterious death, her sons Linus and Lawrence were taken under custody of their father Earl Roland, who has a sick wife Anna and other children. Linus deeply suspects that the Roland family was involved in the death of his mother and thus begins his lonely investigation.

Spring's Paean (Haru no Sanka):
Rachel Brennan was hired by the Roland family as the governess for the children. The children, except the second son William, gradually began to like her. Will William also open up to Rachel too with her efforts?

From JMS:
A collection of 3 tales of Dyne and Ghaleon and the Great Inheritance of Vane a magical airship, pride of the flying city of Vane.

- The Scenery I Recall: Dyne and Ghaleons first meeting in the town of Burg.

- Confession of the Soul: While travelling Dyne and Ghaleon help to rescue the Guildmistress of Vane.

- The Memories I Confess: Ghaleons journey to complete his brothers last work the Great Inheritance of Vane.