Last Summer
The group has come to the beach on Aya's suggestion to try to enjoy a little downtime, but Aya actually had an ulterior motive behind the trip. Aya tells Tsuyuno how grateful she is for everything she's done, and the two girls make a promise to each other. However, when they return to the beach house, they find that Nijimi's panty stick has been stolen!
Aired 26/05/2018EP 8 - Last Summer

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)