Seijo to Koushaku-sama no Banshaku: Zense Gurume de Edzuke Shite, Nonbiri Tanoshii Nisemono Fuufu Gurashi

Giselle, a reincarnated saint, has been ordered by the church to enter into a contract marriage with a cold-hearted duke. One of her conditions for marriage is that they have a drink together once a week!? As she drinks with the cold-hearted duke, she discovers a surprising side to him... Enjoying the gourmet food of her previous life and spending delicious, happy days with the duke and his subjects, the story begins! (Source: Comic Walker, translated)