After the “Practice for Preparation of the Yahaba Town Comprehensive Plan” introduced in Sect. 3 of Chap. 8, I intended to implement the principles outlined in Chap. 10 as much as possible while supporting the formulation of Yahaba Town’s Seventh Comprehensive Plan (Late Period). Among the six principles (information disclosure, equality, participant, evidence-based method selection, external perspective, and fading away), the evidence-based method selection principle is primarily for researchers, and the information disclosure and external perspective principles could be manageable if designed properly.