Once you’ve made in into Ordis during the 6/17 - Field Exercises, go into Strauss Orbal Factory to speak with Strauss to accept the Quest. Proceed a little bit further into the story until you reach Auros Coastal Road, then go down onto the beach to find the Jade Shells needed for the quest. Return to Ordis and give the Shells to Strauss to complete the quest.
Join Rean on an adventure through Erebonia, where you'll embark on new journey as a Thors Branch Campus Instructor. Here you'll explore many locations, face old/new enemies, and find many treasures that give you an advantage in battle as well fancy clothes to help you look the part.
The guide for The Legend of Heroes: Trails of Cold Steel III will include all there is to see and do including a walkthrough featuring where to find all Side/Branch Campus Quests, Chests, Books, Cards, Recipes and more. Including in depth guidance on how to beat every boss as well as how to solve and conquer all dungeons.