Netmarble has introduced the new Legendary hero 'On Stage Dellons' to 'Seven Knights Idle Adventure', developed by Netmarble NEXUS, to celebrate the game's 2.5-year anniversary.

On Stage Dellons is a band-themed variant of the character 'Dellons'. Upon awakening, he ascends to the Legendary+ grade 'Frontman Dellons'. He is designed to consume his own HP to grant himself a 'Shouting' effect, dealing increased damage based on the number of debuffs applied to the target. After awakening, the 'Shouting' effect is enhanced to 'Screaming'. Netmarble plans to continue introducing new looks for Seven Knights heroes, starting with Dellons.

A 2.5-year anniversary event is also underway. Through the '2.5th Anniversary Special Attendance' event running until April 2, players can obtain up to four 'Elga’s Wish Selection Tickets' and 12 'Elga’s Wish Summon Tickets' to acquire the latest heroes.

The 'Lucky Seven Festa' will also be held from the 21st to April 2, offering a chance to obtain up to 7,777,000 rubies. Players can choose between a basic reward that guarantees a certain amount of rubies at midnight every day, or a draw reward that offers a chance to win 7,777,700 rubies.

Additionally, various events are available, including the '2.5th Anniversary Special Challenger Pass' which provides 'Ego Stones' used for awakening and exclusive equipment for 'On Stage Dellons', the 'Elga Adventure Squad’s Footsteps Challenger Pass' which commemorates the journey of the past 2.5 years, the '2.5th Anniversary Special Dungeon' where players can obtain 'Elga’s Wish Hero Selection Tickets' using currency earned from clearing dungeons, and the '2.5th Anniversary Special Carnival' where players can exchange currency earned from daily missions for items.

The '2.5th Anniversary Festival Coupon Event' is also being held to provide special coupons. The coupons can be used until April 16, and players can receive the 'Goddess’s Gift', which allows them to select and obtain one of the strongest heroes.