Netmarble has rolled out a major summer update for Seven Knights Idle Adventure, featuring its second collaboration with illustrator and cosplayer Biya alongside a slate of seasonal in-game events. The collaboration partnership adds two new Legendary characters—Mariner Biya and Hellenia (Swimsuit)—to the roster and builds on the May 2024 launch that drew strong engagement worldwide. Players who log in during the Hot! Special Summer Check-In event can claim the new Mariner Biya hero as well as characters from the original Biya collaboration simply by completing daily sign-ins through July 23.

A companion Hot! Summer Festa: Seaside Dungeon invites players to tackle a limited-time dungeon to earn event currency, which can then be exchanged for Summer Festa Hero Summon Tickets or specific characters, including Mariner Biya and the original Biya hero. Beginning June 14, the Hot! Summer Festa Challenger Pass will reward participants with swimsuit versions of May, Karin and Shane, plus Biya herself.

Additional activities include the Hot Summer Finale Mission Pass, available through July 16, which awards Event Summon Tickets for completing assigned tasks, and Elke’s Cauldron, an event running until July 23 that lets players collect special items to trade for a Summer Festa Event Summon Ticket.

As a follow-up to the original Seven Knights title—played by some 70 million users worldwide—Seven Knights Idle Adventure reimagines the franchise as an idle role-playing game optimized for low-capacity devices. The update extends the series’ narrative with new episodes featuring fan-favorite heroes rendered in a stylized, super-deformed art style.

Netmarble, established in South Korea in 2000, operates studios and publishing partnerships across the globe. Its portfolio includes Kabam, SpinX Games and Jam City, and its lineup spans Solo Leveling: ARISE, Tower of God: New World, Lineage 2: Revolution, MARVEL Future Fight and more.