Ojousama's Forbidden Culinary Detoursお嬢様の禁断寄り道ごはん; Ojousama no Kindan Yorimichi Gohan

Yuuki Saji is the daughter of one of Japan's leading zaibatsu families. Aoi Hashisugi, a former delinquent who was thrown into a rich school by her parents, finds her classmate Yuuki in trouble on a street corner and decides to buy her a beef bowl. Then, he opens her eyes to a commoner's delicacy that she eats for the first time. A young lady with a deep window meets a commoner's delicacy.