The collection does not rely on cosmetic packaging alone; the flavor lineup features four custom recipe profiles developed by Nongshim’s culinary R&D teams in Seoul. Two variants rework established classics, while two introduce brand-new broth foundations tailored to the show's dark urban aesthetic.
The flagship offering is the Spicy Demon Broth, a souped-up variation of classic Shin Ramyun containing extra black pepper, roasted garlic flakes, and a Scoville rating hovering near 8,500 SHU. The Midnight Black Garlic Tonkotsu balances rich pork-bone broth with charred garlic oil, designed to replicate late-night alleyway dining scenes. For non-spicy palates, the Soy Butter Glow Ramyun delivers a savory, umami-dense dry noodle coated in sweet soy glaze and dehydrated butter pearls. Rounding out the wave is the Ghost Pepper Kimchi Spark, featuring genuine freeze-dried aged kimchi cubes that rehydrate with an aggressive acidic bite.
Rarity extends past the recipe into the packaging components. Nongshim implemented a tiered manufacturing ratio for the inner collectible items:
- Standard Tier (1:1 per cup): Die-cut holographic character sticker (12 total designs) tucked between the lid seal and the seasoning pack.
- Uncommon Tier (1:4 cups): Foil-embossed inner pull-tab lids featuring weapon concept sketches from the animation studio.
- Chase Tier (1:24 cups): Serialized "Demon Core" metallic seasoning wrappers printed with gold metallic ink, redeemable online for physical production art books.
