Is That Time I Got Reincarnated as a Slime episode 1 filler?
Canon No, episode 1 of That Time I Got Reincarnated as a Slime is canon.
#1
The Storm Dragon, Veldora
暴風竜ヴェルドラ
Aired 2 Oct 2018
Canon No, episode 1 of That Time I Got Reincarnated as a Slime is canon.
#1
The Storm Dragon, Veldora
暴風竜ヴェルドラ
Aired 2 Oct 2018