Netmarble has rolled out a fresh batch of 'Gachiakuta' collaboration content for 'The Seven Deadly Sins: Grand Cross'.

For those unfamiliar with the source material, Gachiakuta is an anime based on the manga of the same name. It follows Rudo, a lad unfairly banished to the 'Lower World'—a desolate realm separate from the 'Upper World'—where he teams up with a band of cleaners to dismantle the systemic inequality of his world.

The update introduces four new SSR-grade heroes: [Team Akuta] Cleaner Rudo, [Team Akuta] Cleaner Engine, [Team Akuta] Cleaner Zanka, and [Team Akuta] Cleaner Riyou. You'll snag 10 summon tickets upon reaching 100, 200, 400, and 500 mileage points, and hitting 600 mileage lets you pick your favorite from the quartet.

Throughout the collab, simply logging in will net you up to 77 Diamonds and one free collaboration hero. There's also a special mission event running, where completing objectives rewards you with collaboration relic material boxes and various growth resources.

Fancy a bit of luck? The special bingo event lets you trade earned currency for relic enhancement boxes and special collaboration loot. Plus, there's an event boss fight against 'Half-Beasts'. Toppling these foes earns you rewards and exchangeable currency for more relic materials and upgrade goodies.

The final phase of the 777 relay event is here. Use the special coupon code '777ENDAND' to claim 77 Legendary Seals and 77 Sweep Tickets. You can also unlock a Gowther costume just by playing. New and returning players get a bonus on top of existing event perks.

For all the nitty-gritty details, visit the official The Seven Deadly Sins: Grand Cross website to check it out.