Touka Kuroitsu is a research assistant who belongs to the Monster Development Department of the evil organization Agastia. However, the enemy she has to fight right now isn't the heroes of justice, but her boss. So long justice exists, evil too, will exist. This is the story of those who fight secretly in the shadows of justice and evil's confrontation.

Yuuichi Katagiri believes that friends are more important than money, but he also knows the hardships of not having enough funds. He works hard to save up in order to go on the high school trip, because he has promised his four best friends that they will all go together. However, after the class' money is all collected, it's stolen! Suspicion falls on two of Yuuichi's friends, Shiho Sawaragi and Makoto Shibe. Soon afterwards, the five of them are kidnapped, and wake up in a strange room with a character from a short-lived anime. Apparently, one of them has entered them into a "friendship game" in order to take care of their massive debt. But who was it, and why did they have such a debt? Could they have stolen the money from class to pay for entry into the game? Yuuichi and his best friends will have to succeed in psychological games that will test or destroy their faith in one another.

Fifteen-year-old Yuna prefers staying home and obsessively playing her favorite VRMMO to doing anything else, including going to school. When a strange new update gives her a one-of-a-kind bear outfit that comes with overpowered abilities, Yuna is torn: the outfit is unbearably cute, but too embarrassing to wear in-game. But then she suddenly finds herself transported into the world of the game, facing down monsters and magic for real, and the bear suit becomes the best weapon she has!

In her Junior High years, the pitcher Yomi Takeda was not able to get very far in a cross-school baseball tournament. Since the catcher on her team wasn't at her level, she couldn't use her signature move, the "Magic Throw," and eventually regretted not being able to use it. After Junior High, she decided to stop playing baseball and went to Shin Koshigaya High School, a school without a baseball club. There, she found her long lost childhood friend, Tamaki Yamazaki, who used to play catchball with her when they were kids. Tamaki also played baseball during her Junior High years as a catcher, and could even catch Yomi's "Magic Throw!" Their promise with each other during their childhood could now be fulfilled! Walking together on the road of baseball once again... The story of the girls who love baseball will begin!