This is a guide for the Retrieve Needle Crystaloid Alpha Aion Directive in Soul Hackers 2. You can start it after clearing Arrow Sector 1F as part of the story.
Location: Soul Matrix – Milady Sector 1F
Ideal Lv: 13
Reward: Sharpened Heel
Collect 6 Needle Crystaloid Alpha
Make your way to Soul Matrix Milady Sector 1F then explore the area speaking to your demons while they are doing recon. Occasionally they will give you a Needle Crystaloid Alpha. After you receive the 6th one, the directive will complete.