Chi Shuyan didn't return to the apartment, but prepared to go to school. On the way there, she couldn't help but call Qi Zhenbai. For one thing, she did miss him a little. For another, she also wanted to know if there was any progress on the matter that she asked him to help investigate.
She only believed a little of what Zhou Manqing said earlier. Zhou Manqing kept saying that she had a good relationship with her sister, and said that she did once care for her biological sister very much. However, Chi Shuyan couldn't sense that care at all.
Generally speaking, even if their relationship had soured for various reasons, as long as they once had real feelings for each other, and if Zhou Manqing had even the slightest bit of regard for their blood relation, she wouldn't be able to bear that her biological sister might never be able to reincarnate forever. At most, she would have gotten Chi Shuyan to restrain the ghost and let the soul find peace.