For the Gods’ Sake by Rory L. Scott

A god and a princess. Working together.

The Greek and Roman gods have co-existed for over two thousand years until the unthinkable happens. Adrian Zeus Jupiter was born from the unexpected, scandalous love affair between his mother, Lady Zeus, and his father, Lord Jupiter. Now, close to three decades later, his birth has forced the gods to combine into one system. While most have accepted the change, there has been a conspiracy brewing—one that threatens Adrian’s rule and life.
To save his line, Adrian turns to the one person who could eclipse his fame—Reyna Romulus. As the people’s princess and the heir to the most powerful business in the Mediterranean, Reyna is the balm to Adrian’s reputation he desperately needs to smooth things over while he dismantles the conspiracy. Little does he know, Reyna needs him just as badly.
As the threat against the gods mounts and their lives are threatened, Adrian and Reyna’s arranged relationship will be tested, along with their promise to not fall in love with each other.