My serenade, my Kieron. During one of his conquests, the heartless Archduke Kieron discovers Melusine, a mermaid in captivity. Their bond deepens, but according to legend, mermaids must kill their lovers...

Anna, a dimension traveler, enters the ominously nicknamed “Swan’s Grave”—the Loengrin Marquisate—as a maid, in hopes of finding a way back to her original world.There, she encounters Marquis Rothbart, who...