Watch full Shirogane no Ishi: Argevollen Episode 12 English Subbed online for free in HD. Full HD Shirogane no Ishi: Argevollen Episode 12 English sub streaming online. Reika Nanjou. Suzushiro tells Tokimune about the events behind his sister’s death at Argent Point. At the time, Samonji was a Second Lieutenant and the leader of the base’s security force which included herself and Quasimodo. Reika was a Sub-Lieutenant and the pilot for a new Trail Krieger that could use its pilot’s brain to control unmanned mechs in the field. Reika saw this as part of her dream to fight a war where no human would die, even though the act put immense strain on her mind and body. Despite his first impression, Samonji slowly warmed up to Reika, and shared coffee with her. One day, Reika was set to test with six unmanned Trail Kriegers in front of high-level Arandas Army officers, but lost control as the unmanned mechs shot up the base. Samonji, Suzushiro and Quasimodo tried to save Reika, but the unmanned mechs were too strong. Reika instead used the last of her strength to order the unmanned mechs to shoot at her own Trail Krieger, shutting down the experiment and killing her soon after.