As
More than that, Yoshitomi is just weird. A completely mind-fuck ending is very like him.
Plus he mostly do short series.
As Blastaar said in the Dynasty forums:
Impossible stuff happens because machines = science fiction.
Impossible stuff happens because magic = fantasy.
Impossible stuff happens, no magic, no machines = magic realism.
Impossible stuff happens, maybe some magic and/or machines, maybe not = Yoshitomi Akihito.