This was one of Sevenn's dreams. In the world he lives in Humans don't exist. (read more a little bit more about it here -> Thee RP Group)
So, one day he had a dream that he returned to how they originally were, and he had a trainer, being able to fly as high as he wanted, but staying as close as he could with his trainer it was an interesting dream, but it was soon forgotten after he awoke and started his daily life.