Persona 5 Royal - How to Make an Eternal Lockpick

This page contains a guide on how to create an Eternal Lockpick in Persona 5, including required abilities, enemies to hunt, and strategies to obtain them.

Persona 5 / Persona 5 Royal - How to Make the Eternal Lockpick

How to Make An Eternal Lockpick

As its name suggests, the Eternal Lockpick is a reusable lockpick that allows you to open locked treasure chests in Palaces or Mementos. This saves you the trouble of making lots of the standard lockpicks at the work desk so you can devote more time to other matters.

When Can you Make an Eternal Lockpick?

You’ll need to have raised the Magician Arcana to rank 6 to unlock the Ace Tools ability on 8/29. This ability allows you to craft all Infiltration Tools, including the Eternal Lockpick. You can check out our guides on Lockpicks and other Infiltration Tools.

Lockpicks Guide How to make all infiltration tools

Materials You Need

To make an Eternal Lockpick, you’ll need 20 Aluminum Sheets and 10 Liquid Mercury. You can obtain both items from the Shadows in Futaba’s Palace when it opens on 7/26. Some of the items can also be obtained in Okumura Palace.

Note the specific Shadows below that drop the required materials to make the Eternal Lockpick.

Shadow Item Drop Location
Anzu Aluminum Sheet
  • Futaba Palace
  • Mementos (Path of Akzeriyyuth) Areas 10 and 11
Anubis Liquid Mercury
  • Futaba Palace
  • Memento (Path of Akzeriyyuth) Areas 1, 2, 3, 7 and 10
Decarabia Liquid Mercury
  • Okumura Palace Facilities Passage
Ganesha Aluminum Sheet
  • Okumura Palace Barracks Area

Tips for Fighting Enemies that Drop the Required Materials

  1. Anubis in particular uses very powerful spells that can quickly wipe out your entire party, so it is a good idea to frequently save when you’ve obtained any of the required materials from them.
  2. You must finish the battle by defeating the enemies. This will not count if you end the battle through negotiation.

How to Easily Make an Eternal Lockpick in Persona 5 Royal

Use Jose’s Cognition Service (Change Mementos)

You can use stamps that you have collected in mementos to increase the number of Eternal Lockpick materials found while exploring them. Note that you must enter mementos on days of bad weather for aluminum sheets and liquid mercury to appear in the dungeons.

Jose’s Shop Guide

It is recommended to infiltrate mementos on 1/27 and 1/28 where the rate of aluminum sheets and liquid mercury is high.

Use the Chariot Confidant’s Insta-Kill Ability in Mementos

After leveling up the Chariot Confidant to level 7, you will acquire the ability Insta-Kill. This grants you a small chance to instantly win a battle after making contact with an enemy by dashing toward them. You will still gain experience, money, persona, and items normally this way.

Having the Insta-Kill ability allows you to quickly farm materials required for the Eternal Lockpick by quickly taking out enemies that drop them. During days of bad weather, hunt for Anzu to get aluminum sheets in the memento’s Path of Akzeriyyuth and Decarabia for liquid mercury in Path of Adyeshach (open after 10/30).

Chariot Confidant Guide

Persona 5 Royal Recommended Article List

Persona 5 / Persona 5 Royal Recommended Articles
News and Features Story Walkthroughs Palace Guides
Boss Guides Characters Confidants
Persona Compendium Electric Chair and Skill Cards Confidant Gift Guide

Leave a Reply


  1. I’m replaying P5 right now and I found Anzu on areas 1,2,3,7 and 10, and for Anubis as usual his on areas 10 and 11 of Akzeriyyuth. I think you got the areas mixed up for the two.

  2. For liquid mercury farming: I had a lot of success grinding the Okumura Palace Facilities Passage with the following conditions:
    Win with Insta-Kill or All-Out Attack & Do not have a Decarabia in Joker’s Persona party. My acquire rate went from around 0 to about 50% when I started doing that.