New boss's opini

Recently, the ocean has become richer with new creatures appearing, but I think it would be nice if the ocean had a boss too. It's just my personal thought, but I wonder what it would be like if an orca appeared as the boss. Dolphins do exist, but they only appear in cold waters and are summoned using a sound-based method. What if we made a summoning item by combining a new material obtained by catching dolphins with goat horns?