Frequently Asked Questions

Cards have three variables that multiply together: Character Identity (base income 5-4,000 Yen/s), Mutation (1x-70x multiplier), and Grade (1x-10x multiplier). The formula is: V_final = B_base × M_mutation × M_grade

Example: Demon Sister (4,000 Yen/s) with Rainbow mutation (70x) and SS grade (10x) = 2.8 million Yen/s!

Mutations are permanent visual variants applied when you open a pack. They cannot be changed after opening. The types are: Standard (1x), Gold (3x), Emerald (5x), Void (10x), Diamond (25x), and Rainbow (70x).

⚠️ This is why you should save Luck Potions for high-tier packs (Soul, Sorcerer) - mutations are locked at pack opening!

Grading uses Grade Tokens to upgrade a card's grade (F → D → C → B → A → S → SS). Each grade has a multiplier: F(1x), D(1.125x), C(1.5x), B(2x), A(3x), S(5x), SS(10x).

💎 Strategy: Only grade cards with 500+ Yen/s base OR high mutations (Diamond/Rainbow). Never waste tokens on Pirate/Ninja cards!

Your cards generate passive income automatically. The game uses an aggregate system where all your cards' final values add up to your total Yen/s. The game is designed to be AFK-friendly.

Best strategy: Focus on getting high base-value cards (Gentle Healer, Demon Sister) rather than grinding many low-value cards.

Follow the 4-Phase strategy:

1. Code Injection (0-10 min): Use FirstCode for free Ninja Pack, skip Pirate tier entirely
2. Pirate Fill (10-30 min): Optional completionist phase, don't spend more than 20 minutes
3. Soul Leap (30-120 min): Save potions for Soul Packs, target Gentle Healer (500 Yen/s)
4. Grading Endgame (2+ hrs): Farm for Sorcerer packs, get Demon Sister (4,000 Yen/s), use Grade Tokens

See our Guides page for details!

Optimal order:

1. FirstCode immediately - Get $500 + Ninja Pack to skip Pirate tier
2. SecondCode early - Get potions but SAVE for Soul tier
3. ThirdCode in endgame only - Wait until you have Sorcerer cards to grade
4. FourthCode for Soul Leap - Use Luck II potions when opening Soul Packs

Check our Codes Strategy Guide for the perfect execution path!

A God Roll is the highest possible combination: a high base-value character (Demon Sister 4,000 Yen/s) with Rainbow mutation (70x) and SS grade (10x).

Rainbow SS Demon Sister = 2.8 million Yen/s - the ultimate card!

Even lower-tier characters can become valuable with the right mutations: Rainbow SS Candy Dock (5 Yen/s base) = 3,500 Yen/s!

No! The game uses a Binder/Index system with no duplicates. When you get a duplicate, it's automatically converted to currency. This design encourages the "flexing" social mechanic and collection completion rather than grinding duplicates.

Codes are case-sensitive. Make sure to copy them exactly as shown on our Codes page. Each code can only be redeemed once per account.

✅ Correct: FirstCode
❌ Wrong: firstcode, FIRSTCODE

Exact probabilities aren't officially published, but community estimates suggest:

• Rainbow: ~0.01% or rarer (1 in 10,000+)
• Diamond: ~0.1% (1 in 1,000)
• Void: ~1% (1 in 100)
• Emerald: ~5%
• Gold: ~10%
• Standard: ~83%

This is why Luck Potions are so valuable!

Instead of instant opening, you place packs on a conveyor belt and wait for them to hatch. Each pack has a base hatch time (varies by tier). You can use Hatch Time Potions to speed this up.

This creates a physicalized procurement system that rewards AFK play and strategic potion usage.

This is the Dual-Currency Standard:

• Yen (Cash): Primary currency for buying packs. Earned passively from cards. Hyper-inflationary across pack tiers.
• Grade Tokens: Premium currency for upgrading card grades. Much more scarce. Obtained from codes, events, or gameplay milestones.

Think of Yen as "farming currency" and Grade Tokens as "polish currency" for endgame optimization.

Trading exists but is heavily limited due to the Binder system (no duplicates) and the fact that card value is determined by RNG at pack opening (mutations are locked).

⚠️ The "Myth of Trading": Because mutations can't be changed and grades require scarce tokens, most progression comes from pack opening optimization, not trading. Focus on the 4-Phase strategy instead!

Follow the pack progression: Pirate → Ninja → Soul → Slayer → Sorcerer → Solo

Skip Pirate if you use FirstCode. Focus your time and potions on Soul tier and above. Sorcerer packs have the best cards (Demon Sister at 4,000 Yen/s).

See our Packs Guide for details on each tier!