I think that since Mokou is Kaiba, Yugi should be Kaguya instead of Yuugi.
Reisen is Joey, Tewi is Tristan, Keine is Mokuba (Shut up, Keine!) Satori is Pegasus, Yuuka is Yami Marik, and filling the role of Zorc Necrophades is... You guessed it, Flandre Scarlet ;)