Guys let's be frank! If Kirishima wasn't such a psycho we wouldn't be addicted to this manga. A story about Yoshino and Shouma would be much more dull (though interesting).
Btw, I think Kirishima is planning to use Nao although it's shitty knowing he's going to Osaka to see Nao when on trip with Yoshino...
Reading the title made me think that it's the end of the world...