What happens in the Attack on Titan world in the passing four years? New cadets, leaders and family have to fight to survive together against the Titans. They grow to learn more about these monsters, but what if there were other enemies working with the Titans? People they trusted. Foes attempt to cast away Lux and Irina Kraynor's flourishing friendship, and relationships. Wildly different backgrounds merge together to form stronger bonds than ever before. Becoming each other's other half, twin flames you might say. But things take a turn when he reveals his secret, a secret that breaks the Survey Corps from within.