Mu Yiyi
Zhou Tong is really asking for trouble by trying to take Mu Feiran's place in Black Hawk's life.If she crosses the limit then she will be forced to realise by Black Hawk that she doesn't have the capability to compete with Mu Feiran.I think Lin Che will also not let anyone else insult her best friend & would be sister-in-law without punishment.
Lu Beichen and Black Eagle are hopeless in love, so slow to getting it. It's fortunate that Gu Jingyan and Mu Feiran love their partners. Yes, both must learn and learn fast. It's hilarious of Zhou Tong to think so highly of herself. Guess, she will need to learn things and hard truths the hard way.