Watch full Shirogane no Ishi: Argevollen Episode 13 English Subbed online for free in HD. Full HD Shirogane no Ishi: Argevollen Episode 13 English sub streaming online. Blue and Indigo. Private Namie Portman arrives at the outpost where Independent Unit 8 is doing training exercises. Along with her arrival come multiple Trail Kriegers of a new model known as the ZTK5 Seiran, for which she provided testing data during production. Namie joins Silfy, Lorenz and Tokimune as they run a mock battle for the Seiran, but Namie’s inexperience leads her to be easily defeated by Silfy. Sometime later, the 8th Unit is mobilized to attack a nearby Ingelmian encampment. All four Trail Krieger pilots blitz the enemy and swiftly destroy several enemy Trail Kriegers before they can mobilize, but after saving Tokimune, Namie is blindsided by an enemy Trail Krieger. Tokimune rushes in to save her, plowing through the enemy to stab the offending mech with a brand new sword after Namie unsuccessfully tries to free herself. After the battle, Jamie notices that Tokimune’s linkage rate with Argevollen spiked over 70% near the end.