Is That Time I Got Reincarnated as a Slime episode 16 filler?
Canon No, episode 16 of That Time I Got Reincarnated as a Slime is canon.
#16
Demon Lord Milim Attacks
魔王ミリム来襲
Aired 22 Jan 2019
Canon No, episode 16 of That Time I Got Reincarnated as a Slime is canon.
#16
Demon Lord Milim Attacks
魔王ミリム来襲
Aired 22 Jan 2019