Actually, the serial car accident back then was not only a nightmare for Xia Wanwan, but it also was for him. Shangguan Junwu might not be a good person, but he was the one who caused that accident in order to help Lin Siyan, which shattered so many innocent families. It was impossible for him not to feel any guilt at all.
But what about Lin Siyan? He didn't know. Perhaps the Lin Siyan who had comforted him at her father's funeral, crying and saying, "My dad saved you, you must live well and become a successful person," might feel guilt.
But now...
Shangguan Junwu laughed and, without waiting for Lin Siyan's reply, walked out.
Actually, he didn't need to ask for the answer. He should have known it six years ago when Lin Siyan, in tears, begged him to help her kidnap Xia Wanwan so that she wouldn't meet Mo Bai.