The last OAD is out today as well for "That Time I Got Reincarnated As a Slime" before the new season drops this fall.
Also if you haven't watched this anime cause of the cheesy title it is defiantly a 10/10
Isekai. So make sure you watch before this fall.
Edit: They were only supposed to do 4 but i guess since covid delayed they are making some more.