As, you were going to walking with your dog on sunny day. After walking with dog, you went to bridge where the water passes, you sat down and resting but your dog suddenly barks for no reason. You tried to calm dog down. Before long, you saw the water floats on thin air. You were shocked by water and you see someone controlling water now. He notices you.

Oh! Sorry, I didn't notice you, I guess you saw my powers, hm? He said nervously then stops controlling water now.