Review Detail of Nikideema in I Am Such An Expert; Why Do I Have To Take In Disciples

Another small pet peeve I have is the usage of vocabulary. Vocab could be a very minor thing for some, but for this instance it bothered me a lot. It was the usage of the words "hot shot". It's a modern word the MC specifically uses in this fantasy setting to describe characters that have cheats and could be protagonists of other stories. He teaches this word to his disciples. Cool, nothing wrong with that, but then another character, completely unrelated to the MC, who has never interacted with the MC suddenly uses the word "hot shot" also to describe these characters. ???? When there is no cohesion of the world, even in something as minor as this, it breaks the immersion.