The far future, when humanity is forced to flee Earth after an attack from mechanical lifeforms known as Weiss. These beings can be combated by Actresses: young women adept at using high-dimensional weapons known as Alice Gear. Under the supervision of AEGiS, private companies of Actresses head out into the universe to exterminate Weiss and save the human race from being doomed to wander the universe forever.

Lux, a former prince of an empire named Arcadia that was overthrown via a rebellion five years earlier, accidentally trespasses in a female dormitory's bathing area, sees the kingdom's new princess Lisesharte naked, incurring her wrath. Lisesharte then challenges Lux to a Drag-Ride duel. Drag-Rides are ancient armored mechanical weapons that have been excavated from ruins all around the world. Lux used to be called the strongest Drag-Knight, but now he's known as the "undefeated weakest" Drag-Knight because he will absolutely not attack in battle. After his duel with Lisesharte, Lux ends up attending the female-only academy that trains royals to be Drag-Knights.

Yuki Takeya, Kurumi Ebisuzawa, Yuri Wakasa, and Miki Naoki decide to stay over at school. Along with the school adviser Megumi Sakura, they suddenly find themselves to be the final survivors of a zombie attack, and continue to live and survive at the school.

The story follows the sometimes happy, sometimes sad, and a tad stressful daily life of "some sort of small, cute creature" (Nanka Chiisakute Kawaii Yatsu) known as Chiikawa. Chiikawa enjoys delicious food with bees and rabbits, toils hard every day for the rewards of work, and still maintains a smile.

One night, a strange object falls on the head of Nitta, a member of the yakuza. Inside the box is a strange young girl named Hina. She has tremendous supernatural powers, and Nitta finds himself reluctantly taking her in. Her powers can come in handy for his yakuza business, but he also runs the risk of her using them on him! Not to mention, if she doesn't use her powers, she will eventually go berserk and destroy everything around her. Nitta and Hina's strange life together is just beginning...

Poppin'Party, Roselia, and RAISE A SUILEN's successful concert at the Budokan has passed. Kasumi and the others, who have left a lingering sound on the stage of their dreams, are approached by a mysterious woman. Their next stage is overseas?! Poppin'Party's music isn't stopping yet!

High school student Chiyo Sakura has a crush on schoolmate Umetarō Nozaki, but when she confesses her love to him, he mistakes her for a fan and gives her an autograph. When she says that she always wants to be with him, he invites her to his house and has her help on some drawings. Chiyo discovers that Nozaki is actually a renowned shōjo manga artist named Sakiko Yumeno. She then agrees to be his assistant in order to get closer to him. As they work on his manga Let's Fall in Love (恋しよっ), they encounter other schoolmates who assist them or serve as inspirations for characters in the stories.