Mitsuya-sensei no Keikakuteki na Ezuke.

"This pounding in my chest is more than just admiration!?" Tomoya Ishida is a newbie editor at fashion magazine Sophia Monthly. After his senior's sudden hospitalization, he's hastily assigned to collect a column manuscript from the famous culinary researcher Ayumu Mitsuya. He pays him a visit soon after, and to his surprise, finds an affable, older man who speaks in a Kyoto dialect. Being asked to wait, Tomoya is served a simple dish that entices his stomach, and soon he finds himself eagerly awaiting their next encounter! (Source: Bunkasha, translated)