18+ (viewer warning, this fanfic has death)
MC woke up in a beach (night time)
MC used his reality magic to change the multiverse etc. of DXD so that "humans can not be deceived by the supernatural" (memory manipulation etc. doesn't work on humans anymore, if its not from MC)
[system: quest reward for "free humanity 1" Power 1K->1000K, human - > satan class]
Rias and Sona are panicking about how they cannot mind control kuoh human students
Devils and other "supernaturals" are worried
Underworld is having an emergency meeting between satans; sirzech, serafall, ajuka and falbium