This manga is essentially Junji Ito's take on the classic story of Snow White.
It is an extremely short story, as the whole thing is no longer than 15 pages, so there is very little to talk or enjoy about this manga.
The story is about a vain Queen who prides herself as being the most beautiful in all the world, she checks and confirms this fact each and every day by asking her magical mirror, until one day the mirror says that she is only the second most beautiful in the world, as she was surpassed by her foster-daughter, Snow White. Upon hearing this the
Queen does the only logical thing, she throws Snow White into the dungeon and has her killed. This way she would be the most beautiful again, if it weren't for the fact that Snow White keeps resurrecting via the powers of the 7 dwarves (who are for some reason ghosts in this story). Snow White thus keeps getting resurrected and killed until the story suddenly ends with the Queen's death.
The art is decent, as it should be expected of a Junji Ito manga, but there really isn't anything to enjoy about this manga, it is neither scary nor interesting, and by the time something interesting happens, it just ends and you won't even care about any of the characters. You will most likely forget this one soon after reading it.
A poor work all things considered. If you want to read a good Junji Ito adaptation of a classic story, then I would recommend reading his adaptation of Frankenstein, it is way longer and more fleshed out than this one.