Duet Night Abyss Paper Stars Box Guide: Hidden Dreams

This guide explains how the Paper Stars Box works in Duet Night Abyss and how to use it to pursue the game’s “Hidden Dreams” — the special rewards tied to the gacha system’s pity and exchange mechanics. You open the box with Paper Stars currency, and you get either a random item or a guaranteed reward after a set number of pulls.

Formula

The Paper Stars Box is a probability-based reward system. The chance of getting a 5-star item increases with each pull you make without receiving one, up to a hard pity. The formula used here is a simplified model: Chance (%) = min(100, (pity + 1) × 6.67), where pity is the number of pulls since your last 5-star. The guaranteed pull count is 15 – pity (if you are at 0 pity, you are 15 pulls away from a guaranteed 5-star).

Worked Example

Using the defaults: you have spent 10 Paper Stars and your pity counter is 0. The chance of a 5-star on your next pull is (0 + 1) × 6.67 = 6.67%. You are 15 pulls away from the guaranteed 5-star. If you pull 10 times without a 5-star, your pity becomes 10, and the chance rises to (10 + 1) × 6.67 = 73.3%.

What Is the Paper Stars Box?

In Duet Night Abyss, the Paper Stars Box is a gacha-style loot box that you open using Paper Stars, a currency earned from gameplay, events, or purchases. Each opening costs a set number of Paper Stars (typically 1, but the calculator above lets you adjust for bundles). The box contains a pool of items ranging from common materials to rare character fragments and weapons. The “Hidden Dreams” refers to the special reward tier that only appears after you reach a certain pity threshold — it is not a separate box but a guaranteed high-rarity drop.

How the Pity System Works

The game uses a two-part pity system:

• Soft pity: After about 10 pulls without a 5-star, the probability of getting one increases gradually. The exact curve is not officially published, but players have observed a noticeable rise around pull 10–12.
• Hard pity: At 15 pulls without a 5-star, the next pull is guaranteed to be a 5-star. This is the “Hidden Dream” guarantee.

The calculator above models the soft pity as a linear increase, which is a common approximation. In practice, the game may use a different curve, but the hard pity at 15 is widely confirmed by player testing.

How to Choose What to Pull

The Paper Stars Box has several variants (e.g., standard, limited, event). To maximize value:

• Check the current banner: limited boxes often have a higher chance of exclusive items.
• Save your Paper Stars for a banner where you want at least 3 of the featured items.
• Do not pull if you are below 15 pity and do not have enough stars to reach it — you lose the guarantee if the banner changes.

Common Mistakes and Misconceptions

A frequent error is confusing the pity counter with the number of boxes opened in total. The pity resets only when you get a 5-star, not when the banner ends. Another misconception is that the “Hidden Dreams” tier is a separate box; it is not — it is the guaranteed 5-star reward. Also, some players think that using more Paper Stars per pull increases your chance, but each pull is independent; only the pity counter matters.

Comparing Paper Stars Box to Other Gacha Systems

Compared to similar games, Duet Night Abyss has a relatively low hard pity (15 pulls) and a higher base rate (around 6.67% at 0 pity, versus 0.6% in many other gachas). This makes it more generous, but the item pool is also smaller. The trade-off is that you get fewer total pulls per currency, so budgeting is still important.

Cost and Currency Management

Paper Stars are earned through daily missions, event rewards, and story progression. You can also convert premium currency into Paper Stars at a rate of 1:1, but the conversion is irreversible. A typical 10-pull costs 10 Paper Stars, so a full pity cycle (15 pulls) costs 15 Paper Stars. Plan your spending around events that give bonus Paper Stars.

Safety and Fairness

The system is purely random and does not involve any skill or timing tricks. There is no way to “manipulate” the pity counter other than pulling. Be aware that gacha systems are designed to be addictive; set a budget and stick to it. If you feel you are spending too much, take a break. The game does not offer a way to buy pity directly, so the only safe approach is to save your currency.

Alternatives to Pulling

If you do not want to rely on luck, you can obtain some items through the in-game shop using a separate currency (e.g., Stardust) that you get from duplicate pulls. This is a slow but guaranteed method. Also, event-specific boxes sometimes allow you to choose a reward after a certain number of pulls, which is a better deal if you want a specific item.

Frequently Asked Questions

What is the pity counter in Duet Night Abyss?

The pity counter tracks how many pulls you have made since your last 5-star. It starts at 0 and increments by 1 for each pull. When it reaches 15, the next pull is guaranteed to be a 5-star, and the counter resets.

Does the pity reset when a new banner comes?

Yes, the pity counter resets when the banner changes, but only if you have not reached the guaranteed threshold. If you are at, say, 10 pity, and the banner ends, your next banner starts at 0. So it is best to save your pulls to complete a full cycle on one banner.

Can I get the Hidden Dream reward without spending money?

Yes, Paper Stars can be earned through free gameplay. The game gives enough free currency to do a full pity cycle (15 pulls) about once per month, depending on events. It requires consistent play but is possible.

Is there a way to increase my chances of a 5-star?

Only by pulling more. The soft pity increases the probability as you approach the hard pity, but there is no item or trick that raises the base rate. The only control you have is when to pull and how many times.

What should I do if I get a duplicate 5-star?

Duplicates are converted into a currency that can be used in the shop to buy specific items or character fragments. This is a common way to eventually max out a character without spending more.

How does the Paper Stars Box compare to the game’s other gacha?

The Paper Stars Box is the standard gacha. There is also a weapon gacha that uses a different currency (e.g., Moonlight). The pity systems are similar, but the pools and rates may differ. Always check the banner details before pulling.

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in t | Paper Stars spent | stars | 10 | 0
in p | Pity counter | pulls | 0 | 0
out chance | Chance at 5★ | % | min(100, (p + 1) * 6.67) | 1
out next_pity | Pulls until guaranteed | pulls | max(0, 15 - p) | 0