It's the day of her period. She's been lying about it, and now she's saying it's time for her period again. Uh-oh. Okay, we're ready to wrap up the mystery of the secret episode of the second season of "Sister's Secret" . We'll start off by saying that this is the first time we've heard about the "secret episode" of this second season, so it'll be interesting to see what it is all about. We learn that the professor is tired, and that he's just thinking about something. He doesn't want to be seen as an assistant. He wants to find a place to put his period gel, but he can't find it anywhere. The smell of the gel reminds him of the smell of his sister's period, and he wants to do something about it. He asks the assistant to help him put the gel in the right place, but the assistant won't help him. He's too hot to do anything, and the smell makes him feel like a hot mess. He decides to take a break, and find something tasty to eat. The professor asks him what he'd like to eat, and when he says "scratch" , the professor gives him a list of options: chicken, pig's foot, and "puppy king pudding." The professor is confused, but then he realizes that he can eat whatever he wants after finishing the meal.