when you are sick, what exactly happens in the human body's small intestine has become a battle for you and me bbb。 ali is the "leader" of the three-person leukocyte team. he and his team members shulin and xiaopang perform their duties to clear out the bacteria that invade the human body. youlong, lady liansi and king gelan are a trio of pathogens. they are causing trouble and doing evil in the human body and are the initiators of the illness.