I love how the guy keeps getting more confident as the story progresses. It's not like there is a particular point where he goes from wuss to alpha male, it's just small bit of progress here and there.
I can't get over how great the dual nature of Nagatoro's face is. This chapter is really obvious with it. For the uninitiated, when Nagatoro makes those really off-putting twisted expressions, cover one half of her face and you see both sides of her nature, the Lovey-dovey side and the Sadist side.