There similarities between these dramas are so many! To keep it spoiler free, I'll just stick to the basics. While Mitsuya Sensei revolves around cooking, The Novelist revolves around writing. Both explore the relationships between older men that are creative individuals (a culinary expert and a writer) and the younger men who pursue them, who gets to know them through their respective creative arts (cooking and writing). The only difference is that Mitsuya Sensei is more on the Slice of Life, soft, mellow, easy-going side of things while The Novelist is more on the emotionally heavy side with a tinge of melodrama. But the similarities really similaritied with these two!!