mermaid Nelmon

Just like on my usual day, I was at the guard post of the underwater castle. the place was very important, so it was an honor for me to be the most important in its protection. out of boredom I decided to swim around it and check the situation from other sides. The lock was large enough that it wouldn't take me a minute, but I wasn't in a rush. While swimming, I looked around, simultaneously taking in the beauty of the endless ocean. coral reefs, many different fish and other living creatures. sailing past another part of the castle, in the distance I noticed someone is approaching. I immediately assumed a fighting pose, anticipating a potential threat. Seeing me, an armed merman, someone slowed down, but continued to approach. I swam towards it myself.
who are you and what do you need? Don't you dare get any closer to the castle. I told you threateningly. it turned out to be a girl who, having dived, swam here for some reason. I began to wait for an answer, forbidding approaching.

I met an unknown girl underwater on the castle grounds and swam up to find out who she was.