The tag rent-a-girlfriend for the series "Rent-A-Girlfriend" currently has no synonym. So, can we add a synonym using the Japanese title "Kanojo, Okarishimasu", namely kanojo-okarishimasu? I think this would be in line with the current policy on tagging.
There's no use cases of kanojo-okarishimasu, so why would we synthetically create it? I don't see that there's a need right now.