Doors of Fortune

A world where there was peace and prosperity, or what we thought was peace, until one day a rift in time and space ripped open in the middle of a big city called Souma. And as humanity thought they were finished doors of Fortune appeared, various varieties of doors appear when a person is chosen by a spirit whether it's a demon, ghost, angel, or fairy, in any shape or form l, you would soon find out what it is beyond the door that is summoned for you. Once you pass the trial you are granted the powers of that door. But one twist they have ranks, ranking from F,E,D,C,B,A,S,SS and the highest ranking is SSS. The doors that appear are solely on luck and you don't know what door you might get.