A new ramen shop "Noguchi Soy Sauce Ramen Takaji" has opened near all "Ramen Seiryubo" stores, whose name and taste are clearly similar to "Noguchi Soy Sauce" of "Seiryubo". Because it is 150 yen cheaper than the head family, customers are quickly robbed and sales drop sharply. "Takaji" is run by the "Noodle Prison" group, which operates mainly in Chiba and Ibaraki. Why did the "Noodle Prison" group advance in a way that aimed at "Seiryubo"?