Netmarble announced Thursday a new crossover update for Seven Knights Idle Adventure, bringing characters and events from Kakao Entertainment’s web comic The Swordmaster’s Son into the mobile RPG.

The collaboration adds multiple heroes from the popular series, beginning with Legendary character Jin Runcandel. The comic follows Jin, the youngest member of a powerful swordmaster clan, who is exiled for his weak skills before getting a chance to rewrite his past. Additional characters from the series will roll out over the coming weeks, including Siris Endorma on Nov. 27, Yonah Runcandel on Dec. 11, and Luna Runcandel on Dec. 25.

Netmarble confirmed several in-game events will accompany the update, each offering exclusive rewards tied to the Swordmaster’s Son universe.

Players who log in between Nov. 13 and Jan. 8, 2026, can participate in the first Special Check-In event, which grants Jin Runcandel on Day 1 and Day 14. A second check-in event begins Dec. 11 and provides additional collaboration heroes.

SEVEN KNIGHTS IDLE ADVENTURE COLLAB DETAILS

A limited-time Challenger Pass will run from Nov. 13 to Jan. 8, divided into four rounds. Participants can earn equipment for the new heroes and collect “Ego Stones,” an item used to awaken collaboration characters. Event dungeons themed around The Swordmaster’s Son are also available through Jan. 8, offering summon tickets, Ego Stones, and other rewards.

Two mission passes will be available during the crossover period: Part 1 from Nov. 13 to Dec. 11, and Part 2 from Dec. 11 to Jan. 8, 2026. Completing missions grants further collaboration items.

Seven Knights Idle Adventure is an idle RPG based on Netmarble’s long-running Seven Knights franchise. Designed for low-spec devices and streamlined play, the game expands the original storyline while reintroducing characters as stylized SD versions.

Netmarble stated that more heroes, content, and updates are planned in the coming months. Players can follow future announcements through the game’s official website.

Netmarble, founded in 2000, is one of South Korea’s largest game publishers and developers. The company oversees studios including Kabam, SpinX Games, and Jam City, and holds major stakes in HYBE and NCSOFT. Its portfolio includes titles such as Solo Leveling: ARISE, MARVEL Future Fight, and The Seven Deadly Sins: Grand Cross.