C298 College Entrance Examination?

After inviting the biology teacher in, Lin Yeyu was taking a shower. She called out from the bathroom, "Green Vegetable, you're back?"

I replied, "That's right. Quickly wash up and come out for breakfast!"

Upon hearing my answer, the biology teacher widened his eyes. "You little rascal, quickly tell me who is inside!" That dubious look on her face made me feel speechless