Kudo Wakasui, the unhappiest person in the world. After the death of his father and mother, his brother made it impossible for him to tell his true name under any circumstances, and then he died. He believed that he had been labeled "unknown" and "cursed".
She will only bring death and disaster, and she is destined to live alone and lonely forever.
It wasn't until she met them that she knew what the meaning of survival was, so she protected them silently in her heart until the end of her life.