[bulk] Yuusha to Maou

mass update yuusha_to_maou original -> yuusha_to_maou
mass update yuusha_to_maou borrowed_character -> yuusha_to_maou

Link to request

Matsuda Yuusuke created a universe. Great. He gave it a name and populated it, fantastic. It really don't qualify as original now that it has this much art, let alone that it has had it's own copyright tag pretty much since it started. This should really be purged.

Should purge yuusha_to_maou borrowed_character too.

Yep, updated.

There's a few instances where there's a crossover with other original characters.

Updated the request (but not the OP.)

Done