Kogami/Makishima - Castle of Glass

I adore the relationship between Kogami and Makishima. That loathing that exists between them and yet the undeniable similarities. Moreover, it's interesting to me how obsessive Kogami was over killing Makishima, and still, he is becoming more like him. I thought this song matched them both, because, in their own way, they are a crack in the system, which is the “castle of glass.“