C505 Battlefield to Chaos(1)

Suddenly hearing the word [Holy Grail], Arthur couldn't help but be shocked.

[Hope full of Holy Grail]. A Sacred Weapon that was mentioned multiple times in the "Secret History of the Holy Sword War".

— — [The Power of Reset], [The Key to World Salvation].

"Where is it and what is it for?" Arthur asked with a straight face, "Don't keep us guessing!" Tell me quickly! "

"Can't say