A new Legend-grade hero, Skuld of the Celestial Guardians, has been added to Seven Knights Re:BIRTH. As a Magic-type hero, Skuld specializes in chaining various debuffs centered around 'Magic Vulnerability.

Her first skill, 'Twinkle! Constellation Journey,' attacks all enemies and inflicts Silence. If the target is in a state of Magic Vulnerability, it can also apply a healing reduction effect, and the skill includes support capabilities to cleanse debuffs from allied Magic-type heroes. Her second skill, 'Secret of the Constellations,' applies a turn-based buff reduction to all enemies and can trigger a skill cooldown increase on enemies suffering from Magic Vulnerability.

Her passive, 'Crescent Moon Prophet,' permanently reduces enemy effect resistance and applies a shield reduction effect whenever Skuld uses a skill. She also possesses immunity to all damage for the first 3 turns. Additionally, she features a unique mechanic called 'Threads of Fate.' Threads of Fate are acquired when Skuld is hit while at least three Magic-type heroes are in the party; once three threads are collected, they are consumed to grant immunity to all damage.

A new Hero Ascension system has been introduced. Ascension is a growth mechanic that enhances both a hero's performance and appearance. In this update, it is available for Sylvester and the new hero, Skuld. Ascended heroes gain a dedicated Ascension skill, and their basic attacks, active skills, and passive effects are also empowered.

Ascension becomes available after clearing Adventure Normal stage 14-50. To proceed, heroes must be 6-star, fully transcended, and have all skills fully enhanced. Before ascending, players must complete a 'Fragment Restoration' mission for each hero. Once restored, players can use Ascension Stones to perform the Ascension, after which they can further enhance individual skills. Ascension Stones can be obtained as weekly mission rewards or purchased in the weekly Ruby section of the Shop.

Sylvester, the first hero selected for Ascension, gains the Ascension skill 'Purifying Darkness.' It deals defense-ignoring damage to all enemies twice, removes two buffs, and resets all of his own skill cooldowns. His other skills have also seen overall improvements to attack and survival capabilities. Notably, his passive now provides enhanced stability through crowd control removal, crowd control immunity, and HP recovery upon skill usage. His basic attack, first skill, and second skill have also been enhanced.

Skuld’s abilities can also be significantly boosted through Ascension. Her basic attack gains Magic Vulnerability, and her first and second active skills receive upgrades such as increased activation probabilities. Her passive also sees an increase in the duration of her initial immunity to all damage, the addition of HP recovery, and a buff to the Threads of Fate effect. Her Ascension skill, 'Radiance of Heavenly Fortune,' inflicts HP conversion and 'Recovery Block' on three enemies, with a 100% chance to increase their skill cooldowns.

An Exclusive Equipment system has been added. There are 103 Legend-grade Exclusive Equipment items that provide unique options when worn by specific heroes, along with 8 common Legend-grade items that any 6-star hero can equip. For common equipment, there are also two types each for Unique, Rare, and Normal grades. Exclusive Equipment can be obtained through Adventure, Raid drops, or via Exclusive Equipment Summoning, which costs 80 Rubies per pull.

The Exclusive Equipment system is available after clearing Adventure Normal stage 14-50. Equipment slots can be unlocked in the 'Ultimate Enhancement' menu for hero growth, requiring five 6-star heroes and 1 million Gold as materials. While a 6-star hero with an unlocked slot can equip any Exclusive Equipment, the unique options only apply when worn by the designated hero.

Exclusive Equipment also features a 'Tuning' system. Tuning allows players to add options such as Attack, Defense, HP, Effect Accuracy, and Effect Resistance. New stats including Damage Amplification, Shred, Elasticity, and Regeneration have also been added. Common equipment can only be enhanced and cannot be tuned. 'Tuning Crystals' required for this process can be obtained through the weekly Ruby Shop, Total War, Guild War content shops, and by dismantling common equipment.

Exclusive Equipment Summoning is available in the Summon Shop. Players must select two items for their 'Wish List,' and a 100th summon guarantees one of the items registered on the list. If a player obtains an Exclusive Equipment item they already possess, it is converted into Tuning Crystals.

A new region has been added: the 27th Normal Adventure area, 'Palace of the Absolute,' along with its Nightmare difficulty. The new scenario event, 'The Mage Who Weaves Threads and the Twins Who Shared Tomorrow,' allows players to explore Skuld's story.

New costumes include Skuld’s 'Moonlight Prophecy,' Trude’s 'Frenzied Eclipse,' and Juri’s 'Scales of the Jade Eye.' Additionally, a hero name search function has been added to the team formation screen, and the team formation screen now displays the speed attack order for each hero when speed attack is selected.

The new scenario event, 'The Mage Who Weaves Threads and the Twins Who Shared Tomorrow,' has begun. It will run until the maintenance on June 11, with additional story chapters to be released next week. After enjoying the story, players can clear challenge stages and farm 'Golem Buttons' through repeat battles to purchase items in the event shop. Based on Nightmare Challenge Stage A-6, players can purchase all items except for 1k Gold by completing a total of 231 runs.

There is also a new attendance event. The '1st Anniversary Appreciation Attendance' provides rewards immediately upon login, including Hero Summon Tickets, Pet Summon Tickets, Key Chests, and Shining Skill Enhancement Stones. The second half of the '1st Anniversary Seven Knights Festival (Senape) Challenge' and '1st Anniversary Senape Missions' have also opened. The Senape Challenge is structured around enjoying in-game content to repeatedly claim rewards, with some missions activating sequentially. The Senape Missions involve earning points through various content participation to claim rewards at specific milestones. Furthermore, the 'Ascension Expedition' offers Hero Summon Tickets, Shining Skill Enhancement Stones, Inner Embers, and an Exclusive Equipment Selection Chest at the final stage.