The 4th Primogenitor on the run II (逃亡の第四真祖篇ⅠI Tōbō no Dai yon Shinso-hen ⅠⅠ) is the fifth episode of Strike the Blood II, and the thirty-first episode overall.
- Nina Intervenes and Saves Kojou From Natsuki, and Make They run away.
- Kojou. Yukina and Kanon Meet With Kiriha and Goes.
- Asagi is continues to escape from Soilders. Didier is Save asagi and they Go to the 40th industrial area in the South.
- Natsuki is Objections Way of Kojou and Others and They fight.
- Natsuki is take Kojou to her dimension but Kanon Intervenes with them.
- Kojou Bites Kanon, he going out and Save Yukina and end of Battle.
- 1st Familiar: Mesarthim-Adamas / The Adamant of God's Sheep.
- Avrora Florestina . (actual appearing)