I am not sure anymore if it also happened back then, but I just love it when these gags happen and Karane and Hakari are the only ones left. The first ones to love Rentarou are the last to fall.
@mikan
Yeah, but that won't stop Hakari from throwing Karane under the bus to get at arentarou's attention though.... or use her to vent her pent up thirst when he's not present....
The author/artist seems to be having fun whilst making the dialogues and visuals
You can see that by how ridiculous things get from a high school drugmaker up till constantly breaking the 4th wall for the audience