Due to young Koutarou's financial circumstances, he is forced to live in a small rokujouma (6-tatami apartment) on a budget of 5000 yen a month. On the plus side, he lives rent free, but on the minus side, that's because room 106 of Corona Apartments is cursed. The ghost is a cute young girl, and hijinks ensue when she tries to drive him out. Between the haunting, Koutarou's nosy neighbors, and a self-styled magical girls flying to the unneeded rescue, there's way too much for the impoverished young man to handle. (Source: AnimeReel)

Now that he enters his high school career, Satomi Koutaro begins his life living alone in an apartment that only costs him 5000 yen per month, an extremely cheap deal even for this small apartment. There's a catch: the apartment is apparently haunted by a cute ghost that has driven its prior occupants away. Next thing he knows, not only is there a ghost trying to drive him out of his new home, but magical girls and other unique female characters turn this small apartment into a battleground of sorts. (Source: MangaHelpers)

This is a ‘royal fantasy’, The tale of a boy becoming a hero. The setting is a world of swords and magic, with a ‘demon king’. On the 200th anniversary of the end of the Great War with the Demon King, the Freislein Kingdom is preparing for its memorial. Busily progressing these preparations are the first princess Celestina and her two younger sisters. Nearby is their childhood friend, an apprentice under the court mages called Alex. However, there is a creeping shadow over this ceremony wishing for peace. On the day of the ceremony, something happens that engulfs not only the Freislein Kingdom, but its neighbouring countries into a serious incident, Alex and the others’ fates are also greatly changed…