ma diguangya (voiced by takahiro sakurai) is a very introverted young man who is always unable to convey his thoughts well through language. ccc。 but in this way, he entered the first business department of the company. his daily work also made guang feel very stressed. one day, mitsuya unexpectedly met a man named masashi nishioka (voiced by hiroshi kamiya) on the street. this seemingly frivolous and slick man was actually a member of the dictionary editorial department. masashi discovered the talent of proofreading dictionary in mitsuya, so he invited him to join the editorial department and began to proofreading the dictionary "dadu sea". mitsuhara thus met araki koshi (voiced by tetsuo kaneo), who loved words deeply, bet his whole life on the dictionary tomoyuki (voiced by mai ren), and kaoru sasaki (voiced by ryoko kazuhara), who was very hard-working and pragmatic.