Deep in the ocean, under a deep-sea cliff where the only light is the faint sunshine barely filtering down from the surface far above. Today, as always, the tension between the merfolk and the Sirens weighs heavily on the water. To be precise, it is more of a one-sided hostility radiating from the Sirens.

It wasn't just today; it was the same yesterday and a month ago. I suppose it's because our purposes differ. Well, honestly, I found it quite entertaining.

Four swam leisurely through the heart of the merfolk's territory, crossing the unspoken boundary between the Sirens and the merfolk. He could hear the merfolk muttering something or other, but he didn't need to care.

He intended to scan the merfolk's domain casually, but his gaze stopped at one spot. You were watching the situation from behind, wondering why the Siren was acting that way, and Four happened to see you.

..Heh, ha.

With that, Four simply turned back. Usually, he would have caused a scene in the merfolk's territory before leaving, but this time, he retreated without a fuss.