Touka Kuroitsu, an assistant in evil secret society Agastia's monster development department, must do whatever she can to push a project proposal through.

Kuroitsu accompanies Megistus on a business trip to Kyushu, where she realizes Megistus's dedication to his job.

Kuroitsu creates a new monster, Hydra, to take out Blader. Unfortunately, budgetary concerns have caused most of the new monster's functionality to be omitted... and Blader appears to be in a big hurry!

Kuroitsu's team needs a stamp of approval from each of Agastia's executives to get their latest request fulfilled. But terror (and frustration) awaits at each of their lairs!

Kuroitsu wants to create a special monster for Valentine's Day, but Akashic repudiates her lack of a proper feminine mindset. And so, the chocolate-making class begins!

The development department holds a drinking party, and Camula shows up! The party's organizer, Kuroitsu, seeks a way to break free from the awkwardness, but...

Magical Girls Pilia Magia infiltrate Agastia and end up in a showdown against Megistus. Meanwhile, Kuroitsu seeks a breakthrough in her battles against Blader...

Kuroitsu comes up with a new plan: to defeat Blader in underwater combat! Through various traditional beach games, Kuroitsu will test the aquatic potential of her monsters!

Agastia's latest monster, Mummy, has Blader on the ropes... until a particular sight takes away her will to fight. Mummy wants to reject the role she was designed for and create a new lifestyle. But can a monster without a voice make a life... as an idol?!

Kuroitsu tags along on a retreat for Agastia executives in order to learn more about what makes them tick. But while the team enjoys their hot springs resort trip, an unexpected enemy seeks to take advantage of the relaxed atmosphere!

Zet Arc is attempting to buy out Agastia! But when the takeover turns hostile, who will appear to join Miss Kuroitsu in the fight?!