This is the tale of a man who is enchanted with making dictionaries, and another man, who is enchanted by the other’s passion. Mitsuya Majime works at Genbu Shobou Publishers. In the sales department, Majime, who sees words in a different way from others, is treated like a weirdo - but then, he is welcomed into the dictionary editing department. There, he becomes one of the members who will put together the new dictionary, ‘Daitokai’ (The Great Passage.) There’s a veteran editor who’s nearing retirement age, an elderly scholar who has devoted his life to researching the Japanese language, a flashy guy who starts to feel love towards dictionaries, and a girl he was destined to meet. Surrounded by these individuals, Majime immerses himself in the world of dictionaries. Through the bonds we call words, their lives begin to softly knit together. However, this is a dictionary editing departments filled with issues. Will they be able to complete the Daitokai in the end?