Arsenal Jealousy

Arsenal Jealously (アーセナルジェラシー) was a story event in Assault Lily: Last Bullet, starring Miliam Hildegard von Guropius, with Kaede Johan Nouvel and Futagawa Fumi in supporting roles. It ran from April 15, 2021 to April 30, 2021, and was rerun in April 2022.

Translation
The complete English translation of Arsenal Jealously can be found here in Google Doc format.

There is also a full set of subtitled YouTube videos by GEHENA Subtitle Labs.