The official Twitter account for So I’m a Spider, So What? has announced that there will be no episode on April 2, 2021, with the show returning with Episode 13 on April 9, 2021. Crunchyroll is simulcasting the series.
The story of So I’m a Spider, So What? is described as:
I, the protagonist, was just an ordinary high school girl, but suddenly I was reincarnated as a spider monster in a fantasy world. Not only that, but I awakened in a dungeon filled with vicious monsters. Armed with only my human knowledge and my overwhelming positivity, I’m forced to use spiderwebs and traps to defeat far stronger monsters just to stay alive. So begins the labyrinth survival story of a girl with incredible mental strength living as one of the lowest-ranked beasts.