Kei Nagai quotes from Ajin: Demi-Human (newest)

Kei Nagai: A winning hand's only good when you keep your cards hidden.

Kei Nagai: Personal feelings just complicate matters. You can't rely on them to turn your situation around. I've known that people destroy themselves when they get carried away with their emotions.

Kei Nagai: Somewhere in the world, there are always people dying: from war, poverty or other absurd reasons. Why aren't you trying to save them?