First of all, this movie is very original and intresting but, I don't like banana so if I were a man, I had not wanted to appear Bananamaster. And I wonder whether the room reeks of the smell of banana. It is unbelievable to clean the room by only bananas.
Well, I 'd like to answer the Question about this movie. I think Bananamaster is a specialist of banana. He try to spread of banana so if he receive a request, he willingly proceeded to the places which he is requested.This time, the apartment guy's friends secretly asked him to clean his room, I think.