I think Sinichiro is just pretending to have amnesia since it would be weird to tell people on earth that he went to some other demon world.
How do you know he is pretending?
From last Page, sorry
'I think'
Ahahahaaa sorry ı was trying to ask how do you know he has amnesia and the other world stuff but then ı realize ı didnt read the Last Page
Hahaha ok no prob... ^ω^
I think Sinichiro is just pretending to have amnesia since it would be weird to tell people on earth that he went to some other demon world.