Takamine is an hilarious tsundere and there's too many ungrateful fucks that can't appreciate her.
She will lie, cheat, steal; gaslight, gatekeep, girlboss; deny, deny, deny rather than show or say plainly she likes Shirota EVEN SO she does so more and more. She actually can't be any clearer already but this doofus is so insecure he doesn't want to believe her!
You have to be an idiot like him to take at face value half of the shit she says.
Of course this isn't an experiment. This is an aquarium date!
They're both impossible but they're finally getting there. Or well, they're going to move in together in college and Shirota will be like omg we're roommates