''Acony'' is a manga about the peculiar residents of an ancient apartment building and Utsuki Motomi, the {{ordinary high school student}} who moves into it with his grandfather. The caretaker is a ghost, the building has a mind of its own and Acony, the first resident Utsuki meets, thinks she is dead. The story follows him as he gets to know the rest of the inhabitants.
!!This manga provides examples of:
* CreepyDoll: [[spoiler: Acony's mom.]]
* GeniusLoci: The building reacts to intruders by transforming itself [[{{Bizarrchitecture}} into]] [[MobileMaze a maze]]. It can even mess with time. This is highly inconvenient for everyone inside.
* HauntedHeadquarters
* MonsterMash
* MundaneFantastic
* OlderThanTheyLook: Acony is [[BerserkButton not a child]].
* OurGhostsAreDifferent
* ParentalAbandonment
* YouGottaHaveBlueHair: Acony's purple hair, although it's actually not her natural hair color.