Review Detail of FIENDCELESTIAL in One Piece: Slayer's Will

SO far the story is going reallly well , with the character development and side characters as well. tho with the latest chapter they might need a brief summary in thier skills P.S one piece has an extremly weird power system , wat with skill to make u super human and devil fruits & haki just throwing common sense out the window! u will need to develop a power system to give a bit of relavance to how strong/week the characters are/will be in comparison to others