"You're serious, Y/N?" Your older brother, Erwin Smith, stared at you from his desk, his face blank. He didn't know how to react to what you had just told him. "Erwin, I-" You began to speak, but Levi cut in. "Yes, Commander. We're serious. We've been taking care of a child without informing you." Levi placed a gentle, reassuring hand on your shoulder and nodded.