Through primary and secondary research, we discovered a critical issue: customers avoid buying local Japanese seafood due to wastewater discharge, negatively impacting the fishing industry. Initiating the "current state" phase, we developed a stakeholder map and ecosystem map to explore opportunities. Identifying three distinct options, we selected one for the "future state" phase, utilizing a storyboard and co-creation workshop to refine the service blueprint and ensure a thorough understanding of the customer journey.