Thanks for the translation.
If I remember correctly, [Spoiler] she's gone be a love rival. I think she's gone like the MC from what I've seen in the raws.
My Guess is this manga is heading towards the final arc, or even this is the final arc. First, this isn't the first time chizuru blushed while remembering him(She might be embarrassed though). Second, this is the first time she asks him if he's free or not to hang out with him(Though, she might...