Moving in

Lucy Heartfilia goes back to her summer mansion as her father is on a business trip. On the first day, she hears odd noises (not those noises you pervs) from inside her mansion but when she walks in, she sees nothing. After a while the 'people' reveal themselves.
Will she be-friend them forever, or is the friendship fake?
Which side will she choose to join?

This might seem to be a reverse harem in some moments but it's not. Sorry if you don't ship some of these, no hate ;-;