Punishing: Gray Raven items

Serum

Serum is a 4-star item in Punishing: Gray Raven.

How to get

Various source.

• 1 Day Tour Tickets x2
• 2-4 Star Memory Box
• 4 Star Weapon Shard
• 5 Star Memory Shard
• 6★ Memory Resonance Material Pick
• 6 Star Memory Shard
• 6★ Weapon Resonance Material
• 6★ Weapon Resonance Shard
• A Better Tomorrow (Collectible)
• A Blurry Bounty Notice?
• A Bowl of Reunion
• Abyssal Dye