Index has returned to
London on the orders of the English Puritans, only to find herself in the center
of a coup-d'etat spearheaded by the Knights! After they seize most of the UK,
the entire country is put under martial law while the sorcerers of the Puritan
faction continue to resist. As the civil war rages, Touma Kamijou follows
Index's trail to Folkestone where he unfortunately runs directly into the
mastermind of the coup herself, the second princess Carissa...and God's Right
Seat Acqua?!