Yum‑Yum Milk (you may also see it written as “Yum Yum Treat”) is the gatekeeper for Geniemon ascension in Duet Night Abyss. If your companion’s level is stuck at its current cap, this is the item that lets you reset the level to 1, raise the cap, and grow stronger overall. It also unlocks a trait system by letting you equip inactive Geniemon for bonus Traits. Some Geniemon can be ascended more times than others; the limit is shown by the number of ascension diamonds on their profile.
Get Yum‑Yum Milk from Immersive Theatre (Memento Shop)
Yum‑Yum Milk is purchased in the Immersive Theatre’s Memento Shop with Ticket Stubs. You earn Ticket Stubs by clearing Immersive Theatre runs.
- Mode: Immersive Theatre (endgame; waves of enemies into a boss)
- Structure: Two teams are required
- Currency: Ticket Stubs (awarded from runs)
- Shop: Memento Shop (spend Ticket Stubs for items, including Yum‑Yum Milk)
Immersive Theatre is designed for late‑game teams and is positioned as a permanent, repeatable challenge. It’s the primary progression target once your roster is built out, so budgeting Ticket Stubs for Yum‑Yum Milk is part of the loop.
How to unlock Immersive Theatre
Immersive Theatre doesn’t appear until you complete two prerequisite chapters:
- Chapter Noctoyager: “A New Theatrical Experience”
- Chapter Twilight: “The Judgement Day”
Finish both, then enter Immersive Theatre to start earning Ticket Stubs and access the Memento Shop.
Geniemon ascension explained
Using Yum‑Yum Milk to ascend a Geniemon does three things:
- Resets its level to 1
- Raises its maximum level cap
- Improves its overall power and abilities
Ascension also enables a passive layer: you can equip inactive Geniemon to gain Traits. Because ascension limits vary by unit, check the number of ascension diamonds to see how many times a specific Geniemon can go up.
Leveling vs. ascending: what Yum Cream does
Yum‑Yum Milk handles ascension. Leveling back up is where Yum Creams come in. These consumables give EXP in increasing amounts depending on rarity:
- Yum Cream — standard EXP
- Yum‑Yum Cream — more EXP than Yum Cream
- Yum‑Yum‑Yum Cream — more EXP than Yum‑Yum Cream
Reliable ways to get Yum Creams include:
- Buying with Angler’s Tokens at Fishery Shops
- Finding Paniemon for reward drops
- Claiming Beginner’s Guide rewards
- Completing Daily Memos (reach 120 to earn 2 Yum Creams per day)
- Purchasing from the Immersive Theatre Memento Shop
Once a Geniemon hits its current level cap, you must ascend with Yum‑Yum Milk to keep progressing. After the reset, use Yum Creams to climb back to the new cap.
Memento Shop priorities (what else is in there)
Beyond Yum‑Yum Milk, the Memento Shop carries other high‑impact items:
- Secret Letter: Elpides Abound — Psyche’s best‑in‑slot weapon, priced at 150 Ticket Stubs
- Yum‑Yum‑Yum Cream — the highest-tier EXP item
Immersive Theatre can also drop the character Psyche when you select her Secret Letter as a drop at the start of a round. If you’re pushing both character acquisition and Geniemon growth, you’ll be juggling Ticket Stub spend between Yum‑Yum Milk, EXP creams, and those Secret Letters.
Quick reference: resources and where to get them
| Resource | Primary use | Where to get |
|---|---|---|
| Yum‑Yum Milk | Ascend a Geniemon (reset to 1; raise level cap; unlock Traits via inactive slots) | Memento Shop in Immersive Theatre (costs Ticket Stubs earned from runs) |
| Yum Cream | Standard EXP for leveling | Fishery Shops (Angler’s Tokens), Paniemon, Beginner’s Guide, Daily Memos (2/day at 120), Memento Shop |
| Yum‑Yum Cream | More EXP than Yum Cream | Same sources as above, including the Memento Shop |
| Yum‑Yum‑Yum Cream | Most EXP of the three | Memento Shop; other sources may vary by activity and rewards |
| Secret Letter: Elpides Abound | Psyche’s weapon (best‑in‑slot) | Memento Shop (150 Ticket Stubs) |
Checklist: farm Yum‑Yum Milk fast
- Finish “A New Theatrical Experience” (Noctoyager) and “The Judgement Day” (Twilight) to unlock Immersive Theatre.
- Build two teams capable of clearing waves and a boss; aim for consistent completions over speed.
- Run Immersive Theatre to earn Ticket Stubs.
- Buy Yum‑Yum Milk in the Memento Shop; stockpile enough for your next ascension.
- Use Yum Creams to quickly re‑level ascended Geniemon to the new cap.
Yum‑Yum Milk is the choke point for long‑term Geniemon growth, and Immersive Theatre is the only reliable path to it. Budget Ticket Stubs for ascension first, keep a reserve of Yum Creams to blunt the level reset, and watch the ascension diamond count to set realistic upgrade plans for each Geniemon.
