More vague hints.
#9: Guessed by Darashiva: Demon's Souls
#8: Guessed by Darashiva: Okami
#7
a) Visions of the future.
b) Use these visions to avoid or counter enemy attacks.
#6
a) Life as an idol in japanese culture and secretly fighting strange dangers.
b) Japanese pop-culture creates enthusiasm, from which otherworldy beings feed on.