They say that eyes are the windows to the soul.
Levi’s face is expressionless, but he has emotions. You have to look for them in those grey orbs.
His eyes darken when you fail to make the headquarters sparkle. That hurts. The light fades out of his eyes when he witnesses the death of someone who was too young to die. That burns.
His eyes would then turn to a stormy steel, but he would continue on as Humanity's Strongest, time and time again. Sometimes, his eyes will shift over to yours, encouraging you with unspoken words. That was love.