To be candid: the Himeno's tears on page 11 surprised the tar out of me. I actually gasped, truth be told, because this is so un-tsundere that I was not expecting it. 
I felt for her like I'd feel for a daughter who had discovered something heart-breaking. A bitter sweet moment. The explanations made sense afterwards, of course, but she's really the first to "waken" in their class. And Himeno has her heart set on her Ouji-Chad!!  <3 Yeah, everyone else in class are still asleep. So, to see her rise first is like: awwww she's gonna be so lonely!