Void's Enigmatic Mansion Vol. 5 (manga)

What if your greatest wish could be granted? Faithful friend, trusted doctor, unassuming neighbor...As the masks donned by Mr. Juist begin to crumble, with his true nature revealed to his dearest friend at long last, there is only one way his story can conclude...But with every ending at Void's ever enigmatic mansion, there is always a beginning of another...a tale of long, long ago...