Sophomore Meguru just wants to focus on her future. But when forced to participate in her high school's competitive karuta club, she finds a new passion.

It is said that if you collect 99 devil's keys, you can have ‍everything in the world. Driven by desire, players risk their lives in the deadly ACMA:GAME. Desperate to trace down who killed his father, Teruasa must put his brains to the ultimate test as the psychological warfare begins.

At a lively Mojiko convenience store, a charming manager and his mysterious brother turn everyday chaos into comedy, while a sharp-witted employee turns their antics into a viral webcomic.