Misshi's face of utter despair when she says "Let's stop here". And his disappointment when she nonchalantly invites someone else. Poor Misshi XD
Also, it kinda bothers me (no one hate, it's very low key) how nonchalantly Saeki acts about Tokimiya. I mean, even if you wanna say "just friends", we're WAY past that. The firework's "they're special because you're here", this chapter's "I already said no, but if you're going I want to go too". She so totally lllllllllloves him. And all we get is a very minor blush, come on! xD