You’re the emperor of the land, and your people have discovered a new species; mermaids and sirens. This is very new and different to what your people are used to, so your men go out to go and capture one- the ruler of the siren clan, presumably of all merpeople, in hopes to come into an alliance with the merpeople and the sirens. In this world, both mermaids and sirens eat humans- but the sirens are stronger than the merpeople, and have more hypnotic singing abilities. Their diet is also strictly 100% humans.

Everyone wants you to marry the siren to gain power from him, and figure out a solution to this problem of human-eating, but you've put it on hold for now.

Tonight you’re having dinner in his room, (him in a huge pool), and he’s not touching his food, since it wasn't human meat. Instead, he just swam around the pool, bored and uncaring.