Seven Deadly Sins: Grand Cross keeps its roster fresh by running limited-time collaborations with popular anime, games, and even K-pop acts. Each crossover drops a set of guest heroes you can only pull during the event window, and it usually pairs them with World Quests and special Event Boss Battles that hand out rewards you cannot get anywhere else.
Quick answer: Collab units are time-limited. If a crossover is live, pull the heroes and clear its World Quest and boss fights before it ends, because those units and rewards leave the pool when the event closes.
How Grand Cross collab events work
Every collaboration is a temporary event, not a permanent addition. Guest heroes arrive through banners and event shops, and once the crossover ends they stop being available to summon. That is why players treat each one as a window to grab characters they may not see again.
Alongside the units, most collabs bring their own fights. A World Quest usually retells part of the guest series, while an Event Boss Battle or Death Match pits you against a signature villain from that franchise. Clearing those stages is how you farm the exclusive rewards tied to the event.
TenSura was the very first collaboration to run in Grand Cross, which set the template for everything that followed. Some crossovers have even returned for repeat rounds, such as The Rising of the Shield Hero coming back for its second and third seasons and Solo Leveling returning for a second run.
Every collaboration and its signature bosses
Here is the lineup of crossovers that have run in Grand Cross, along with the boss tied to each one where it is known.
| Collaboration | Event boss / Death Match |
|---|---|
| KOF ’98 | Final Boss Rugal |
| TenSura | Demon Lord Clayman (Final Boss), Ifrit (Death Match) |
| Attack on Titan | — |
| Stranger Things | Mind Flayer (Death Match) |
| Re:Zero | The Great Rabbit & Petelgeuse |
| The Rising of the Shield Hero (S2 & S3) | Kyo Ethnina |
| Mushoku Tensei | Orsted (Death Match) |
| MAVE: | — |
| Overlord | — |
| Tower of God | — |
| The Eminence in Shadow | — |
| Solo Leveling: Arise from the Shadow (S2) | — |
Guest heroes from each crossover
The collab units are the main draw. Below is the roster tied to the crossovers with confirmed hero lists, so you know exactly which characters belonged to each event.
| Collaboration | Featured heroes |
|---|---|
| KOF ’98 | Red Terry, Green Iori, Blue Mai, Green Athena, Red Kyo, Green Rugal |
| TenSura | Green Demon Lord Rimuru Tempest (LR), Green Rimuru, Blue Rimuru, Green Shuna, Blue Milim, Red Benimaru, Green Shion, Red Milim (LR) |
| Attack on Titan | Blue Eren, Blue Mikasa, Green Eren, Red Levi, Blue Steadfast Eren Jaeger, Green Levi |
| Stranger Things | Blue Eleven, Red Jim, Red Mike, Green Will |
| Re:Zero | Blue Emilia, Green Ram, Red Rem, Blue Beatrice, Red Reinhard, Green Echidna |
| The Rising of the Shield Hero | Blue Naofumi, Blue Raphtalia, Green Filo, Red Kizuna, Blue Fitoria, Green Glass |
| Mushoku Tensei | Red Eris, Green Ghislaine, Red Rudeus, Green Roxy Migurdia |
| Overlord | Blue Ainz, Blue Albedo, Green Cocytus, Red Shalltear |
A few units broke from the usual anime and game theme. The MAVE: crossover added ZENA from the virtual K-pop group MAVE: as Blue Zena during the game’s fourth anniversary, and she was handed out free of charge alongside a diamond banner.
Is a new collab confirmed?
No official next collaboration is currently confirmed. Grand Cross adds crossovers on its own schedule rather than a fixed calendar, so the safest move is to check the in-game notices and official channels for a fresh announcement rather than relying on rumors.
Tip: When a crossover does go live, prioritize the units and rewards you actually want early in the run. Collab heroes and their event shops close with the event, and there is no guarantee a specific character returns in a later round.
Collab events remain one of the clearest reasons to keep an eye on Grand Cross between story updates. They bring recognizable guest heroes, one-off boss fights, and rewards that vanish once the window shuts, so timing your pulls and boss clears while a crossover is active is the whole game.
