"This cake is literally fire"
Can you fucking not?
Also, when William said: "This is legit..."
In both cases, Emma and Joshua respectively, are talking in modern day slang. While Emma did spend 30 plus years of her first life in Japan, she was a middle aged office lady. And then she grew up as a noble in her second life. Her younger brother William was also in his 30s in his first life, and then grew up as a noble in his second life. There is no way they would be talking like this. Totally breaks the immersion and takes me out of the story.