Qian Jin is a forgetful teacher at Meng Academy. He has a short stature and a beer belly, with abundant black hair. He causes a fire in the Potionology classroom by leaving a coffee maker on. His poor memory means he does not recognise Rui Bu Si from the past. He teaches potionology. He is kind but absent-minded. His sneezes disrupt class. He eventually admits his mistake about the fire, clearing Jian Ni's name.
