By His Vow: An Arranged Marriage Billionaire Romance (Callahan Billionaires Book 1)

After her father's death, the protagonist inherits a cottage—the only place that ever felt like home. She also unexpectedly inherits Kingston Callahan as her husband for one year. He is her brother's best friend, a billionaire she has long despised for his arrogance, egotism, and power-hungry nature. Everything about him represents what she dislikes about her privileged upbringing. The arrangement is a merger, not a true marriage. In exchange for one year together—365 days—she gains the life she has always wanted. She intends to keep the arrangement purely transactional, but Kingston's touch awakens an unexpected hunger she did not anticipate. As they maintain their pretense, she struggles to avoid developing genuine feelings for her temporary husband. This is the first book in the Callahan Billionaires series.