Epic Seven Chaos Zero Nightmare Collaboration

The Epic Seven x Chaos Zero Nightmare collaboration opens on global servers in September 2026. The 8th Anniversary Showcase on 22 August 2026 confirmed three CZN agents as playable Epic Seven heroes: Lenoa (a free Moonlight Ranger), Haru (limited summon Mage), and Meilin (limited summon Soul Weaver). The collab also brings a CZN-themed Witch Haven consultation office, a coin shop, and a permanent Dimensional Exploration mode. The headline is Lenoa being free — Moonlight 5-stars normally cost Mystic medals or Galaxy bookmarks, and a free Moonlight through event participation is materially better value than a standard collab giveaway. Coverage sources: GameMarket preview, gamemeca press, LDPlayer event notes, and the official Epic Seven newsroom from 22 August 2026.

Both games are made by Super Creative, under Smilegate. That detail matters for how urgently you should treat the limited banners — first-party crossovers between two titles under one roof face no external licensing pressure. That does not guarantee the units return, but the usual “this may never come back because the rights lapse” pressure genuinely does not apply here.

What lands in September 2026

Free Moonlight Lenoa is the headline. To claim her:

1. Open the collaboration tile on the lobby.
2. Run the CZN-themed Witch Haven consultation office tracks.
3. Spend the collaboration currency on the Moonlight selector step at the end of the track.
4. Log in once after the selector unlocks to lock the pick.

The full claim window runs roughly four weeks from the collaboration start. Login bonuses during the collab also include daily Covenant summons and a Moonlight selector ticket if you finish the Festival of Shining Moments anniversary track. Kit, stats, and build math sit on the Lenoa kit page.

Haru and Meilin are gated behind limited summons. Two limited banners in one collab is a real bookmark cost, and the free Lenoa does not offset it. Haru is the limited Mage; Meilin is the limited Soul Weaver. Final kit numbers will be published once the patch lands.

Video guide

CZN collaboration dates (global)

• Collaboration start: September 2026 (global server, exact day TBA on the patch notes).
• Lenoa free claim window: roughly four weeks from collaboration start.
• Haru and Meilin limited summons: run in parallel with the free track.
• CZN consultation office: lives in Witch Haven permanently after the collab.
• Dimensional Exploration: permanent mode launched alongside the collab.

The anniversary update and the patch notes are the partner pages for the surrounding release window.

E7WC 2026 schedule

The 8th Anniversary Showcase also confirmed the Epic Seven World Championship 2026 schedule:

• In-game qualifiers: begin 12 September 2026.
• Finals: 28 November 2026 at the Lotte World Tower Superplex in Jamsil.

If you play RTA or Champion Arena, E7WC qualifying drafts run from mid-September through November. The Arena and RTA guide covers the draft process. The PvP ranks and Moonlight ranks cover who you should be building for the qualifier meta.

What to spend your bookmarks on

The CZN collaboration costs bookmarks. The anniversary events cost bookmarks. The Lisette Mystic banner costs Mystic medals, not bookmarks, so it does not compete directly. Decide in this order:

1. Finish the free Lenoa track — the Moonlight is the headline. Spend collab currency, not bookmarks.
2. Pick one of Haru or Meilin — two limited banners in one collab is a real cost. If your reserves will not cover both, choose the role you are weakest in (Soul Weaver or Mage).
3. Skip everything else until Lenoa is locked — anniversary gear, daily Covenant pulls, and the Festival of Shining Moments track pay out in the background.

If you have already finished Hunt 13, your Arena defence is stable, and your soul-weaver core is six-starred, you have the bookmark budget for both Haru and Meilin. If you have not, finish the Hunt core first — limited collab units do not replace a working Hunt cycle.

Offline events

The Showcase confirmed two offline elements for Korean Heirs:

• Succession of Eternity — the 8th-anniversary offline event, held 29 August on the 12th floor of Sinchon Hyundai Department Store. 160 guests are invited; ticket registration opened 24 August.
• Collaboration cafe — runs 29 August to 30 September at the B1 and B2 levels of the same location.

These do not affect global Heirs except for the merchandise and the wiki traffic they generate. The collab itself is the global priority.

Cross-link checklist

The CZN collaboration is the September 2026 event cycle:

• Lenoa — the free Moonlight, kit and build.
• Anniversary update — the partner event track.
• Patch notes — current patch, the gear and balance changes.
• Dimensional Exploration — the permanent roguelike mode that launched with the collab.
• Arena and RTA — draft process for E7WC qualifying.
• PvP ranks — the September 2026 meta picks.
• Moonlight ranks — where Lenoa sits on the Mystic / Galaxy / Blessing shopping list (free).
• Summons and pity — the bookmark math for Haru and Meilin.

The CZN collaboration page was last verified against the GameMarket and gamemeca collab preview on 2 September 2026, and against the LDPlayer event notes on the same day. Patch notes from epic7.onstove.com will update the exact claim window dates once the patch lands.

YouTube reference: Epic Seven New Era Showcase with @Sindree (id Bgucb2hXKdI). The official 8th Anniversary Showcase from 22 August 2026 is the primary source for kit previews, dates, and the E7WC schedule.