Seeing is not necessarily believing. The home I returned to because of the mark was not so warm, and the vague memories were not real. The love in the past turned into friendship and careful companionship, but now the time is lively but something is missing. The danger that comes because of the mark, the door that appears because of the mark, has only one key, but what opens is not what they think. Power is just a moment of brilliance. The moment the door opened, everyone was surprised.