Promises Made In Open Waters

Six-year-old Izuku freed a fierce young merman from a fishing line, sparking a secret friendship that lasted through the years.

The gentle dreamer and the golden-tailed Katsuki met in hidden coves, sharing laughter, stories, and growing longing.

When Izuku joined a merchant ship to survive, Katsuki surfaced one final time. They confessed their feelings and sealed their bond with a kiss beneath the moon.
For one perfect night, everything felt right.

Then came harbor whispers: pirates were hunting merfolk, their target the lost prince of the deep-fierce, explosive, royal.

Izuku's heart stopped.

The prince they hunted... was his Katsuki.