Kareru would be a good work if it wasn't umineko forgery. Unfortunately, it is such a forgery and there is not even a drop of love as well as there is no understanding of characters and general philosophy of original novel.
P.S. After some thinking i have reached the conclusion that the original umineko themes could've never been the point of Kareru and goal of it's author which is valid though absolutely sacrilegious to me but the level of character treatment and mischaracterization is still horrendous and cannot be fully justified with the game master personality. At this point it's not even Umineko, it's just a game with similar gameboard and pieces.