SSS-Rank Cafe by the Dungeon

Rieul toils away at her office job until a sudden dungeon break ends her life. But instead of dying, she wakes up three years in the past with a second chance at life. Determined to change her fate, she reopens her late grandmother's cafe. But the moment she gets to work, she awakens as a Cafe Owner-class hunter... with a talking cat agent named Mieum! Between brewing coffee and clearing system quests, Rieul's new life is anything but peaceful. Has her quiet dream already gone up in smoke?

(Source: Tapas Media)