This is a crossover model of a kei-car that combines a wagon and an SUV, the successor to the Suzuki Kei, which was discontinued in 2009. Many had been waiting for a successor to the Suzuki Kei, which was a crossover between a wagon and an SUV, and in response to their expectations Suzuki made improvements such as better off-road performance based on the platform of the fifth-generation Wagon R. In 2014, it was launched as the Hustler. As soon as it went on sale, the Hustler was well received for its spacious interior, high performance over rough roads, and adorable design, and it became a best-selling model that attracted the support of a wide range of users.

Succubus, Dullahan, Snow Woman, and Vampire. We are all a little bit different from humans, that's "subhuman". These days, they are called demi. This is an exciting and heartwarming comedy about these unique "subhumans" and their high school teacher, Tetsuo Takahashi, who is very interested in them!

Twin sister of Hikari, a vampire. She is not a subhuman, but a normal human being. She has excellent grades and is a steady person.

Succubus subhuman female. She is a colleague of the main character Takahashi, a mathematics teacher. She is a succubus, which means that she has the constitution to make people around her become a whore, but in fact she has never been in love at all. Although she is quite beautiful and stylish, she always wears jerseys, glasses, and ties her hair up, which is not very sexy.

A high school girl who is a subhuman snow-woman. Her body is cold and she is not good in hot weather. In fact, she loves gag cartoons and is good at cooking.

She is one of only three Dullahan high school girls in the world whose head and body have been separated. She loves to have her head hugged. She is an honor student with excellent grades.

A vampire subhuman high school girl. She is a prankster and talkative. Her favorite food is liver and tomato juice. She has a twin sister named Himari.

Main character. He is a high school biology teacher and has dreamed of working with subhumans since he was a child. In fourth year he was assigned at high school, he has had the opportunity to work with many subhumans. He is a big, muscular man.