There might be errors in the grammar and such. If you find some, kindly comment down and correct it so I can change it for it to become better to read. Your help would be much appreciated. Thank you.
Be warned:
# wish-fulfilment
# massive harem
# full of lemon
Using:
" = when talking openly
' = when talking to the system, his inner thoughts, and talking to his summons via telepathy.