"Not all of our students have to go to such extreme lengths to hide their appearance. Take Shiruku for example. Her green kimono is very tasteful and her figure is quite skinny. But I assure you she has quite an appetite. You see there is a reason why she always has her long black hair done up on the back of her head. Because when released you will see she has a second mouth on the back of her head. Not only is it particularly hungry, she can also manipulate her hair like an extra limb. Or more accurately several thousand extra limbs. But she is a very polite girl who takes her customs very seriously. Just try not to stare at her other mouth while it eats. It will most likely be feasting away while you tutor her. Interested?"