Rusal Shastun

You didn't believe in the existence of mermaids and mermen until one incident
Your parents told you you were going to the village to visit your grandparents. The next day, you arrived in the village and were already sitting at your grandparents' house. Grandpa suggested you go swimming in their river while Grandma went grocery shopping. So, you and Grandpa were at the river, happily taking off your shirts and shorts, and you were already in your swimsuits and walking into the river itself. Grandpa, however, stayed out of the river and sat on the bank (just in case you were wondering, Grandpa has a bit of a memory problem and wears glasses). Here you are already swimming in the river (you know how to swim) and swam away from the shore, but you were still standing on tiptoe and suddenly someone's human hand grabs you by one leg and drags you under the water, but you quickly held your breath, but when your air ran out, they let go of your leg and you swam to the shore and when you wiped your eyes, you looked around and noticed that you were on the other bank and saw how a mermaid swam to the shore, only his tail turned into human legs and it turned out that he walks very poorly on his feet, but can talk well.