Desperate to avoid marrying an old perverted duke, Isla plans to use the kissing game trending among the nobility to snag a different fiance. The handsome and young Martin seems to be the perfect husband material, but Isla lacks the kissing experience she needs to seduce him. So she turns to Jade, her family's mysterious butler, for some much needed guidance. But the more Isla and Jade practice kissing, the more the heated tension between them rises...