In the beginning, when they all thought that she was "he"….
ML #1: We will be brothers for life!
ML #2: This time I'll reluctantly let you have the #1 seat.
ML #3: I will properly repay royal teacher!
ML #4: Ah Rong is my closest little brother, I trust him.
Afterwards…
MLs: I'm seriously such a fool.
[Take 2] Because of the system's mistake, the female Ling Rong had to appear as male figures in the public eye to go save the male lead. And so, the thought processes of the male leads went like this…MLs: What do I do, I think I'm gay. I fell in love with my bro/rival/teacher….
Afterwards….
MLs: I'm straight! As straight as steel!