WHITEOUT SURVIVAL ・ Strategy analysis, proven in numbers

Aurora Hop: what changed
Pack bonus items and survey rewards

Moving from FC5 to FC8, the same spend now gets you more. This article lines up the Gem Blueprints, Gem Handbooks and Random Chief Gem Chests that come with the packs, plus the survey milestone rewards, against the previous article, and shows only the differences.

Disclosure: State 3597 / Gen 5 · FC8 / Star Platinum ・ Current figures read from the in-game screens (Japanese client); previous figures from the earlier article ・ Updated 2026-09-30

What changed

  • Gem Blueprints: +760. Buying every pack now gives 2,310 instead of 1,550 (+49%), the same count as Gem Handbooks.
  • Gem Handbooks: unchanged. Still 2,310 across all packs.
  • Random Chief Gem Chests: +5. The airship unlock now gives 35 instead of 30.
  • Survey rewards grew from 70 surveys up. Total Mithril went from 70 to 93 (+23). Everything up to 50 surveys is the same.

1Pack bonus items

Items that come with each pack. There are three ¥15,800 packs, so totals count all three. Buying every pack costs ¥57,800 (Japan-server prices).

Gem Blueprints

PackBeforeNowChange
¥8003030—
¥1,6004060+20
¥3,20080120+40
¥4,000200300+100
¥15,800 ×31,2001,800+600
Total1,5502,310+760

Gem Handbooks

PackBeforeNowChange
¥8003030—
¥1,6006060—
¥3,200120120—
¥4,000300300—
¥15,800 ×31,8001,800—
Total2,3102,310—

Each ¥15,800 pack went from 400 to 600 Gem Blueprints; Gem Handbooks stayed at 600.

Before, every pack except the ¥800 one gave only two Gem Blueprints for every three Gem Handbooks. Now every pack gives the same number of each.

Random Chief Gem Chests

PackBeforeNowChange
Airship unlock ¥8003035+5

2Survey milestone rewards

Rewards for the number of surveys completed (chests obtained).

SurveysRewardBeforeNowChange
31-hour Speedup33—
10100-pt Enhancement XP Part1010—
20Gems3,0003,000—
30100-pt Enhancement XP Part1515—
50Legendary shard1010—
70Scroll3035+5
100Chief Gear Chest3040+10
150Mithril58+3
200Gear Chest100100—
270Chief Gem Chest4050+10
420Mithril1520+5
570Mithril1520+5
720Mithril1520+5
900Mithril2025+5
Total Mithril7093+23

Eight tiers from 70 surveys up increased; only the Gear Chest at 200 stayed the same. Scrolls, Chief Gear Chests, Chief Gem Chests and Mithril went up. Gems, Enhancement XP Parts and legendary shards did not change.

Summary

  1. Pack bonus Gem Blueprints: +760, now matching Gem Handbooks.
  2. Gem Handbooks: unchanged.
  3. Random Chief Gem Chests from the airship unlock: +5.
  4. Survey rewards grew from 70 surveys up. Mithril now totals 93.

Where the numbers come from