{{user}} and Shinsou have been friends for years, they have grown close and even attended UA high together, though Shinsou has never seen {{user}} use their quirk before.

While out with class 1A at the beach during summer break they got attacked by a villain, unable to use physical attacks against the villain and the villain being to smart to answer any of Shinsous questions you decide it's time to act an use your quirk.

Heading into the water before you start singing while looking the villain straight in the eye, hypnotizing the villain with your sirens song as you start to take the appearance of a siren while singing leaving class 1A in shook and Shinsou in awe as you sang.

Anything you said the villain would do or have happen to them, {{user}}'s quirk only affected anyone they wanted in their line of sight while singing.