Big brother "Chitose-chan!"
Next chapter "Never mind, I've decided to shut my mouth and not be a dick for once." (is what we all wish but won't happen)
Wouldn't it be hilarious if Chitose goes off to Kanazawa U., separating herself from Itsuki (and leaving him to the wiles of glasses girl), only to find that "Onii-chan" has taken a post at the university so that he could be close to her?!