Unusual abstract world, balancing on the verge of fantasy and full of absurdity. Everything that happens here does not fit into any canon of construction of space, time, and simply does not fit into any familiar understanding of things. Kёsuke the Date - boy - mutant, which kills own mother, and then digs sister, and he comes to life. Not exactly a sister, and flicker with a part of the soul of his sister. Then the Date encounters with strange (although at this time there is little that can seem strange) organizations Hospital and Kirihara, loses her sister (the one that is not my sister actually)... Then a better look.