Basically, what the title implies. That means no secret crushes or romantic undertones. Simply platonic vibes. I'd like the friend group to have four or more people, as well as a mix of girls and boys ('cause I like the message that opposite genders can be strictly platonic). The drama does not have to begin with the characters as a group of friends. E.g: a ragtag group of people met one day and gradually bonded throughout the series. Of course, there can be a romantic subplot in the drama, but just not within the friend group.
Having crime or mystery genres is a plus, but not a requirement. No sageuk or wuxias please! (historical dramas set within the time period of the early 1990s to the late 1990s are fine for me.)
You can rec any drama that I already have in my PTW because chances are, I didn't add it because of this specific trope.
I watch Korean and Japanese dramas, but I don't mind Chinese recommendations. Thanks in advance :)