"I will protect you" was the only sentence that tied her long-lost heart. She stayed in the classroom of primary school students and avoided the unbearable worries because they were there.
"I will bite and kill everyone" alone gave her the courage to face any terror.
She was strong and never needed protection. But under the protection of the great detective, she was willing to do it just to escape from the past. Only that cold young man, holding crutches in front of her, forced her to face the cruelty of reality in such a stiff but kind way. If he could not face his past, he would not be able to welcome the new future. And he... Is the one who can protect him.