The gentle, well-behaved, smart and sensible female protagonist who is a top student VS the tsundere, righteous and bad male protagonist who likes to fight. One is caring and the other is arrogant and difficult to deal with.
"Yu Si, you said you like me, right?"
"Huh? Did I say that?"
"Tsk, I don't understand what you said last time!"
"How do you know I like you if you don't even understand?"
"I understand now, can't I!"
"Oh."
"What are you doing? Since you said you like me, then I'll just do it..."
"Try to tell me what you mean once."
"Huh?"
"Huh? Not willing?"
"No, it's not."
"What is that?"
"I, I, I, I..."
"If you don't tell me, I can leave."
"Don't! I say!... Yu Si, I, I like you!"