While Rena and Maki heal from their wounds, the remaining SORD crew flies abroad for a school excursion. Almost immediately after landing, however, the Mihama clique gets drawn into a pursuit of a SORD deserter, aided by pupil Sylvia and Velvet from St. Aile's International School. This time Tohka takes center stage, yet she battles her own struggles—recollections of her parents and a vow to a friend that she could not fulfill amid the whirlwind of events and their looming deadlines today.
