TL;DR
- 🎮 Collab: Arknights: Endfield × Happy Lemon is live now at US locations
- 📅 Dates: May 13 – June 14, 2026
- 🧋 Drinks: Four Operator-themed beverages — Perlica, Zhuang Fangyi, Ardelia, Last Rite
- 🎁 Rewards: In-game reward code + exclusive merch with every purchase (1 or 2 drinks)
- ⚡ Act now: Items are available while supplies last — grab yours before they’re gone
The Arknights: Endfield × Happy Lemon collab is officially underway, and yes, you can now order a boba drink named after your favourite Operator. Running from May 13 through June 14, 2026, this US-exclusive partnership brings four character-themed beverages, exclusive physical merch, and an in-game reward code to participating Happy Lemon locations across the country.
If you’re anywhere near a participating store, this one’s worth a detour.
🍋 The Collaboration Drinks
Four drinks are available for the duration of the collab. Each one is themed around a specific Endfield Operator, so you’re effectively picking your main when you order.
| Drink | Operator | Description |
|---|---|---|
| Perlica Golden Lemon Bloom | Perlica | Mango-lemon slushy with vibrant golden colouring |
| Zhuang Fangyi Jade Latte with Salted Cheese | Zhuang Fangyi | Matcha latte layered with tiramisu salted cheese |
| Ardelia Strawberry Dream | Ardelia | Strawberry layered beverage with soft pink tones |
| Last Rite Blue Glacier | Last Rite | Bold blue slushy with a frosted, cool flavour profile |
Whether you’re a matcha person or a slushy devotee, the lineup covers a solid range. The Jade Latte with Salted Cheese is the most distinct order on the menu — if you haven’t tried matcha tiramisu cheese, this is your sign.
🎁 Rewards: What You Get Per Purchase
Every drink purchase comes with a physical merch bundle and an in-game reward code postcard. The more you buy, the more you unlock.
| Bundle | Drinks Required | What’s Included |
|---|---|---|
| Operator Set | 1 drink | Random character coaster, in-game reward code postcard, paper bag, cup sleeve |
| Squad Set | 2 drinks | 2 random character coasters, 1 random character clear card, in-game reward code postcard, paper bag, character sticker sheet, 2 cup sleeves |
⚠️ Heads up: All physical items are available while supplies last, and reward codes are one-use per game account. Store participation varies — check the Happy Lemon website for your nearest location.
The clear card in the Squad Set is the standout collectible here. If you’re building a display shelf, two drinks is the obvious move.
📅 Fan Event — San Diego, May 23
Happy Lemon is hosting a dedicated Arknights: Endfield fan event at its Convoy Street location in San Diego on May 23, 2026, from 2:00 PM to 4:00 PM.
📅 Fan Event Details
📍 Happy Lemon Convoy — 4633 Convoy St, San Diego, CA 92111
🗓️ May 23, 2026 — 2:00 PM to 4:00 PM
🎉 Cosplayer photo ops, themed games, life-size character displays, live DJ, drink sampling, giveaways
The event runs for two hours, so plan to arrive early if you want first dibs on giveaways and cosplayer photos. San Diego fans, this is your best shot at a proper Endfield community moment before the collab wraps up.
🤔 Should You Head to Happy Lemon?
- ✅ Go if: You play Arknights: Endfield and want free in-game rewards
- ✅ Go if: You’re a collector — coasters and clear cards are limited-run
- ✅ Go if: You’re in San Diego on May 23 — the fan event is a free experience
- ⏸️ Wait if: You want to check store availability first — not every location is participating
- ❌ Skip if: You don’t have a Happy Lemon nearby — the collab is US-only and in-store only
You can confirm participating locations directly on the Happy Lemon official collab page.
❓ Frequently Asked Questions
When does the Arknights: Endfield × Happy Lemon collab end?
The collaboration runs through June 14, 2026. After that date, themed drinks and reward bundles will no longer be available at participating stores.
What in-game rewards do you get from the Happy Lemon codes?
Each bundle (Operator Set or Squad Set) includes an in-game reward code postcard. The official announcement confirms an in-game reward but does not specify exact currency amounts — redeem your code via the in-game redemption menu to claim what’s available.
Is the Happy Lemon collab available outside the US?
No — this specific promotion is for US Happy Lemon locations only. Endfield players in Japan have a separate KARAYAMA collaboration, and Korean players have a GS25 collab running in parallel.
How do I redeem my Arknights: Endfield reward code?
Open Arknights: Endfield, navigate to the in-game redemption section (typically found under Settings or the main menu), enter the code from your postcard, and collect your rewards from the in-game mailbox. Each code is valid for one use per account.
Do I need to attend the San Diego fan event to get rewards?
No — the in-game reward code and merch bundles are available at all participating Happy Lemon locations through June 14. The San Diego fan event on May 23 offers additional giveaways and experiences on top of what you’d get from a regular purchase.
What if my local Happy Lemon runs out of merch?
All physical items (coasters, clear cards, sticker sheets) are distributed while supplies last. If a location sells out, the in-game reward code postcard may still be available — confirm with staff at your local store.
The Arknights: Endfield × Happy Lemon collab is a rare chance to pair a genuinely good boba run with in-game rewards and limited collectibles. With over a month left on the clock, there’s no rush — but supply of physical items won’t last that long. Check the official Happy Lemon collab page to find your nearest participating store and plan your visit.
