https://www.neoseeker.com/the-legend-of-heroes-trails-of-cold-steel-iv/walkthrough

This is the only guide you will ever need for Legend of Heroes: Trails of Cold Steel IV

It explains every single thing in the game from the walkthrough of all the acts and optional quests to locations of all items and recipes and detailed information of all characters.

I felt the need to share this on steam as it has helped me so much and hopefully it will help you too.

Guide by Zoelius (Chao Min Wu)
all thanks should go to them.