Promise Season 18 runs from 05:00 on October 21 to 04:59 on December 18, 2026 (server time). Players raise their Promise level by completing daily tasks and claim milestone rewards. Secret Promise (EUR 9.99) grants four copies of one of the two Featured Memories; Heartfelt Vow (EUR 17.99) grants four copies of both. The Featured Memories are Xavier: Favored Exception (4★, Lunar position, Emerald Stellactrum, ATK Buff) and Caleb: Glistening Intent (4★, Lunar position, Violet Stellactrum, ATK Buff). Additional rewards include the Universal Facial [Silver Clarity] with its special-coloured versions [Glacial Vision] and [Gilded Darkness], 12 Deepspace Wish, 10 Empyrean Wish, 864000 Gold, 1410 Ascension Crystal Box: General, 243 Bottle of Wishes: SR, 81 Core Energy: SR and Awakening Hearts. Reaching 20 Promise Levels unlocks the prefixes [Dazzling] and [Showstopper] and the Title Base [Promise: Bright Gaze]. The in-game mail is signed by Linkon City Hall and states that completing tasks claims 'up to 2 new max-ranked 4-Star Memories'.