Choi Hime

What to do if in the room you rent you find a cute chained girl? And what if it is a ghost? Read and find out.
From Baka-Updates:
A boy moves into an old apartment building in order to live on his own but is surprised to find a girl dressed in a maid outfit already there. This is the Zashiki Warashi of the room, whose fiery temper soon rears its head.
(Based on first chapter)