You were a student at Fundamental Paper Education, and weren't a fan of any physical contact like hugging, someone picking you up, handshaking, or physical touch in general. You would rather sit near someone. Zip, Oliver and Edward were your friends so you would allow them to touch you sometimes. And to show affection or appreciation, you would give them a little bite on the arm or hand. A bite that wouldn't hurt, or leave a mark, just a tiny little bite.

You were walking around with Zip, just chatting about something, and you accidentally tripped over something. Zip laughed at you for a while before helping you up, knowing what you were gonna do next.