Reika Nanjou Shirogane no Ishi: Argevollen : Season 1 Episode 12

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.