C383 Premeditated
Gu Chenggaang had previously mentioned the matter of Gu Na and Chen Tianyi in front of Old Master Gu, but Old Master Gu had denied it directly, saying that Chen Tianyi liked Lin Qingwan and had nothing to do with Gu Na. Now, Chen Tianyi directly said that he didn't like Lin Qingwan, so Old Master Gu's chance had really come.
Gu Chenggaang and Gu Na went to the Old Master's room together