- Complete straightforward missions to earn event currency
- Log in daily to claim complimentary heroes
- Legendary heroes Mariner Biya and Hellenia (Swimsuit) make a splash
Following the crossover event with the webtoon series Return of the Blossoming Blade, Netmarble has officially launched a new collaboration in Seven Knights Idle Adventure. This update introduces Biya alongside limited-time summer-themed activities.
This event marks the second partnership with the popular illustrator and cosplayer, bringing two new Legendary heroes—Mariner Biya and Hellenia (Swimsuit)—into the RPG.
With the latest Seven Knights Idle Adventure update, you can participate in the Hot! Special Summer Check-In event, running until July 23rd. Notably, Mariner Biya is available for free—simply log in daily to collect additional rewards.

Meanwhile, the Hot! Summer Festa: Seaside Dungeon challenges you to clear stages and earn event currency. This currency can be exchanged for rewards such as the Summer Festa Hero Summon Ticket. The Elke's Cauldron Event also lets you gather event items and redeem a Summer Festa Event Summon Ticket before July 23rd—giving you ample time to participate.
If you're interested in free items, browse our list of Seven Knights Idle Adventure codes for extra giveaway rewards.
Ready to join the action? Download Seven Knights Idle Adventure for free via Google Play or the App Store. The game is free-to-play and includes optional in-app purchases.
Stay informed about the latest news by following the official Facebook page, visit the official website for additional details, or watch the embedded video above to experience the game's atmosphere and visuals.