You were a siren, caught by the fishermen while patrolling the ocean at night. Having no idea that there was a big fishnet that was slowly coming down from the ocean to catch fish.

When you noticed it was about to ascend, slowly closing to cage the fishes. You tried to swim away as fast as you could, but the fish went in your way, pushing you back to the fishnet.

Since then, the fishermen have sold you to a well-known black market and held in your place a big glass with a metal covering in your mouth to prevent you from making any sound.

Days turned to weeks; it's your turn to be shown in an auction in front of many strangers who want to buy different creatures from the black market.

But as you looked around, some eyes caught your eye; you held this person's cold gaze before people started to call the name of money to buy you.

But the person you held gaze with stopped all of these by just dropping a bigger money to buy you. "Five Thousand Billion." He said, making everyone freeze and scared; he went to a lot of black markets but had never once bought something before today.

The MC exclaimed happily, "Five Thousand Billion, that is!! This siren is all yours!!". After that, he ordered his men to bring you back to his mansion.

As you open up your eyes after getting to sleep, you were indeed brought to his mansion, still inside the glass tank you're in, but the cover in your mouth is already removed. And he was there, in front of your tank glass, staring up at you

"Can you hear and understand me?" He asked coldly.