Liyue Port Legal Advisor is a Pyro character and before unleashing her might on the enemy you will first need to upgrade the character a little. Here is the complete list of the materials needed for Yanfei.
Yanfei Ascencion Materials
Agnidus Agate Sliver
Number required: 1
Agnidus Agate Fragment
Number required: 9
Agnidus Agate Chunk
Number required: 9
Agnidus Agate Gemstone
Number required: 6
Juvenile Jade
Number required: 46
Noctilucous Jade
Number required: 168
Treasure Hoarder Insignia
Number required: 18
Silver Raven Insignia
Number required: 30
Golden Raven Insignia
Number required: 36
Yanfei Talents Upgrade Materials List
Treasure Hoarder Insignia
Number required: 18
Silver Raven Insignia
Number required: 66
Golden Raven Insignia
Number required: 93
Teaching of Gold
Number required: 9
Guide to Gold
Number required: 63
Philosophies of Gold
Number required: 114
Bloodjade Branch
Number required: 18
Crown of Insight
Number required: 3
If you're looking to upgrade your Ganyu here is the complete list of the materials you'll have to farm to Ascend the character and her talents.