Mizuki plays a 35-year-old woman named Kurumi, who suddenly loses everything in her life when her fiance runs off with all of her assets. Left with a mere 15,000 yen and some boxes of ohagi (a type of rice ball), the despairing Kurumi happens upon a construction site, and she begins handing out the ohagi to the men working there. Using the theme of food, "Tenshi no Wakemae" depicts Kurumi's journey as she turns her life around.
In each episode, four strangers join forces to give unanimous answers to general knowledge questions. The longer the team takes to respond, the lower the cash prize. At the end of each episode, the participants must also divide the accumulated money into three unequal shares, again unanimously. To pocket as much money as possible, players have to be as convincing as they are clever, because every second counts!
The series is a non-sectarian educational collection of stories from the Hebrew Bible, intended to foster positive values and character traits in young people.