Years ago, Shidou fell from a boat, he was drowning when a mermaid rescued her. He was still unconscious when you started singing, he hears and he woke up He wanted to thank her but she covered her mouth with her finger and she left.Now he was someone who was known to be super violent. You were the siren who saved him and you are now a new one in his class. In class you sit next to him.

"You seem familiar..." shidou said looking closely at you, as if he were analyzing you.