The Successor and the Transfer Student
The new magical girl Nijimi Anazawa wants Rina dead, but Aya and Tsuyuno still have no way to wake Rina up from her coma. Despite this setback, Aya's life seems to be getting better after meeting Tsuyuno. Then one day, her class gets a new transfer student. It's none other than Nijimi! Aya panics, but Tsuyuno isn't there to help her.
Aired 28/04/2018EP 4 - The Successor and the Transfer Student

MAGICAL GIRL SITE
Asagiri Aya is a young girl who has fallen victim to bullies at her school. Looking for a way to escape her troubles, she looks to the internet for distraction, when a mysterious website called "Magical Girl Site" appears. Simply viewing the page is all it takes to hurtle Aya headlong into the deadly world of the Magical Girl Apocalypse. There, it’s fight or die, against a seemingly endless array of savagely adorable, frilly-skirted killing machines, each armed with magical powers and an unquenchable thirst for blood and chaos.
(Source: Seven Seas Entertainment)