I think Twisted Love would have been a more appropriate name for this movie. I understand the director's portrayal of an unconventional love story but this was seriously messed up. I felt sorry for Hidaka and how he was treated. He made himself vulnerable by exposing his true self and hoped for understanding and acceptance. He wanted to be Kitahara's dog, though I believe a dog would be treated better.
I really liked this movie, but a heads up if you are going to watch it the ending is a little unclear. Be sure to watch the extended/deleted scenes on you tube to give a clearer understanding.