Two choices, Two sides. One future. X. After Fuma, the second "Kamui," joins the Dragons of Earth, the attack on Tokyo turns even more brutal. Half-blinded in battle with Fuma, Subaru nevertheless faces off against Seishiro. But for these two, this battle will bring everything in their past to a feverish finale! Meanwhile, Yuzuriha cancels a meeting with Kusanagi to protect a city from remorseless Satsuki's attack!