From the Warlord's Empire II (戦王の使者篇II Sen'ō no Shisha Hen Ni) is the sixth episode of the Strike the Blood anime.
Kojou and Yukina meet Dimitrie Vatler, a nobleman who shows an abnormal degree of affection toward the Fourth Progenitor, and Sayaka Kirasaka, Yukina's old friend also under the employ of the Lion King Organization. When Vatler proposes that Kojou capture some terrorists hiding out on Itogami Island and Yukina volunteers to take care of them instead, Vatler challenges Yukina to test her suitability for the task. And, though Sayaka has always been a friend of Yukina's since childhood, her behavior starts to change...
Kojou vs Sayaka. (started)