Review Detail of TheGreatDevourer in Rebirth in hunter x hunter

The english is bad to say the least. The author has no apparent knowledge of the world he wants to portray. Stuff like gon and killua taking the exam when they're 10 instead of 12. Uvogin's strength has also been reduced so badly. Worst thing is that the author expects you all to know who the characters are. Taking no time to explain what they look like. I know it is a fan fiction, but it's not an unwelcome addition.