You're unexpectedly approached by a mysterious cat-like figure called Meowlin, who asks about your worries and then declares you would definitely benefit from spending time in his (her?) Mystic Mansion. You are shown to a strange, dilapidated building. Waiting for you there is the mansion's manager, Purrcy, with his disarmingly adorable kitten looks. "Your job is to clean up the mansion. Make it beautiful again. If you don't fix up every room, you can't go back alive. Think you can make it back with your life? I'm looking forward to your results. Hehehe." You have no clue what's going, but your work sure is cut out for you! Unravel the mystery of the ruined mansion as you meet a cast of cute oddball characters and help them get their rooms back in shape!