True Love Fades Away When the Contract Ends - One Star in the Night Sky novel volume 1 was written by Kosuzu Kobato and illustrated by Fumi Takamura.

Fiona isn't one to live an everyday noble life. Instead, she finds more fulfillment in working hard. But when she overhears her father planning an arranged marriage for her to her childhood friend, she's desperate to stop it! Luckily, she meets Giles, the son of an earl and the town darling who's also hoping to avoid marriage. Together they hatch the perfect plan to thwart their parents' matchmaking: by pretending to be soulmates! A flawless plan that can't possibly go wrong. Right...?