Sarah is the only person to whom Alex showed his vulnerable side in the past.
The person who was able to weave through his indifferent facade and gaze at his real self.
If someone wanted to know about him, his secrets, his fears, then they only needed to search Sarah's mind.
She was that partner of his, who allowed him to feel more than a murderer—she made him feel like a human being who has a life apart from killing people.
And when he lost her in the previous life, Alex never thought he would be able to become so close to anyone.
He was devastated.
And someone who mattered to him so much to appear in this strange world out of nowhere…indeed, Alex had the right to feel extreme shock beyond belief.
He stared at the woman whom everyone regarded as the Hope of Humanity. However, at the moment when she told him about her identity, Alex couldn't care less about who she was outside this room.