I take it it's because only people who work in Yuzan's Gourmet Club or people who are his close associates (like Toyama-sensei) know about how Yuzan is actually like.
But even then, many of these people just let Yuzan be like an ass for most of the time because of his prestige, sheer skills, and the sense that you can't ever "touch" this kind of people lmao.
Thanks for the past few chapters! A lovely way to cap off the season with the completion of another volume!
Thanks for your hard work and hope you have/had a restful period ahead of the coming new year
Looking forward to following the rest of the romance drama.