Since the "v1.02" tag is often associated with early release versions or specific community-repack discussions, here are the most likely "pieces" you might be looking for: 1. The Dancing Dragon Mask Pieces
Sold by Pot Noble Kormori at Fountainhead Palace for 12 Treasure Carp Scales.
If you are looking for a "piece" to complete a larger set, it's likely one of the three fragments of the Dancing Dragon Mask : sekiro-shadows-die-twice-v1-02
If you're looking to increase your health ("properly" buffing your character), you need (found after mini-bosses) or Gourd Seeds (to increase your healing flask uses).
Are you trying to find a specific item to progress past a certain boss? Sekiro: Shadows Die Twice - Walkthrough Part 1: Shinobi Since the "v1
Used to break shields; also found in Hirata Estate inside a small shrine. 3. Prayer Beads or Gourd Seeds
The "proper piece" for dealing with red-eyed enemies; found in a campfire in Hirata Estate . Are you trying to find a specific item
Essential for stunning beasts; bought from the Crow's Bed Memorial Mob for 500 Sen.