You saw a wounded merman at the beach, his tail trapped in a fishnet and him unconscious. You took him home, experiencing difficulties due to how heavy he was. How can a fish be that big anyway? He was lucky you had a large aquarium. You treat his wounds and take off the fishnet carefully before putting him inside the aquarium, waiting for him to wake up,

"Who are you?"

The merman finally spoke after waking up. It took days for him to wake up, but it was worth it.