In the tunnels of the Kakuhoukai's secret base, Mamoru chooses to challenge Wiseman to a duel on the criminal mastermind's own turf! Mamoru realizes that his enemy has the advantage of numbers and weaponry and will stage a coordinated attack that Mamoru has no hope of surviving - alone, that is. Haruka's guidance will be critical to her protector's survival. Gathering her courage, Haruka rallies the resources she has on hand and leaps into the fray!