Love Fugue

(from ebookjapan):

Honey has an older brother, Clint, an eccentric chemist, Honey dreams of a life full of thrills and romance. Although Luke, her brother's friend and a rich man, is courting her passionately, she is not so sure about her future. Then, Clint completes a love potion he's been working on. However, the drug is taken away by a mysterious organization that is after it. Honey is in trouble, so she goes to Eddie, a handsome private detective, and asks him to rescue Clint. While caught up in a heart-pounding and nerve-wracking case, a romantic comedy with an unexpected twist unfolds. Where will it lead?

"Playboy Blues", "Marriage Rhapsody", and "The Love Song the Witch Plays" are also included.