This tag belongs to the Additional Tags Category.
Parent tags (more general):
This tag has not been marked common and can't be filtered on (yet).
Works which have used it as a tag:
20 Mar 2019
the practice of engaging in multiple relationships with the consent of all the people involved.
For some reason, Midoriya Izuku felt the need to Google this. What he did with the answers... He doesn't even quite know himself.