Agents in the Dead of Night

Agents in the Dead of Night (夜闇を駆けるエージェント) was a mini story event in Assault Lily: Last Bullet, starring Iijima Renka, Hatsukano Yo, and Serizawa Chikaru. It ran from November 11, 2021 to November 21, 2021.

Plot
This plot summary was not originally written for this wiki, and may have errors or be missing important details.

The instructor gives Aizawa Kazuha a secret mission to convey an important package from Herensuge to Sielulintu aboard a train, being very secretive about the details, and tells her not to inform the rest of her legion. Kazuha's really bad at hiding that something's up so Renka gets suspicious, and influenced by a spy show she's been watching on TV, decides to find out what's going on.

Renka eavesdrops on another conversation Kazuha has with the instructor where they reiterate she is not to tell her legion members, then on a phone call Kazuha gets and insists on taking in private, where Kazuha says a bunch of strange things about the "Queen of the Night" and how she will "descend into the darkness", finishing with the phrase "Sanctus clarus albus sol." After the phone call, Renka confronts Kazuha and asks who was calling. Kazuha claims that she was talking to Michikawa Miaki, but Renka doesn't believe her. Renka tells Kazuha she also knows about the secret mission and wants to know what's going on, but Kazuha refuses to tell her anything and leaves.

After that the rest of Legion Hervör, minus Sasaki Ran, decides to take matters into their own hands. Renka gets a bunch of spy gadgets from "Codename J" (Kaede Johan Nouvel). Kaede has the gadgets because she wanted to see how cute Hitotsuyanagi Riri is when she's asleep, but Ito Shizu's been on high alert and catches her whenever she tries to sneak into their room.

Then Renka and the others jump on top of the train Kazuha is aboard and try to do silly spy things while fighting a ton of Huge that keep appearing. Eventually a special-type shows up and it's too hard for them to fight, but Kazuha jumps out of the train, having noticed all the commotion, and fights it with them.

After they're safe, they all get inside the train and the others apologize to Kazuha, while Kazuha covers for them when the instructor calls her and asks why the delivery is taking so long. Renka tells Kazuha they did this because Kazuha was going to "descend into the darkness," and Kazuha explains she said that because she really was talking to Miaki on the phone, who insisted that they both speak the "witches' cant." It was all Renka's misunderstanding.