The Grand Defense: Defy the Unjust Judgment

Times are server time: the same digits on each server’s own clock.

• Adventure Rank 20 or above
• Complete Archon Quest Chapter VII: Act IV "A Rekviem for the Underworld"
• This event is closely tied to the Archon Quest and will unlock as you progress through Archon Quest Chapter VII: Act VI "A Yesterday Sent From Beyond."
• For the best experience, we recommend completing plenty of Story Quests, Hangout Events, and World Quests, and pacing your playthrough of this event alongside your Archon Quest progress!
• Travelers who have reached Adventure Rank 20 or above and completed Archon Quest Prologue: Act III "Song of the Dragon and Freedom" can take part in the event via "Quick Start" on the event page.

• During the event, Travelers must provide support across multiple battlefronts by completing three types of operations: Emergency Rescue, Securing Air Supremacy, and Tactical Sweep.
• In "Emergency Rescue" operations, Travelers must use the overhead surveillance devices to search for and locate rescue targets, then head to their locations and help them escape.
• In "Securing Air Supremacy" operations, Travelers must guide a Favonian Falcon along a designated flight path, defeating as many monsters as possible along the way and delivering intelligence.
• In "Tactical Sweep" operations, Travelers must deploy members to complete various events, then take on a boss and reduce its HP as much as possible within the time limit.
• Complete operations to reduce the Holy Soil threat. Once it drops to a certain level, you can invite one of the following 4-star characters of your choice and obtain rewards including Primogems, Crown of Insight, and other rewards.
• Available 4-star characters: Amber, Xiangling, Thoma, Collei, Lynette, Kachina, Aino, and Alyosha.
• ※After the event ends, you can still experience the "Trial of Usurpation" as you progress through Archon Quest Chapter VII: Act VI "A Yesterday Sent From Beyond." Your current progress will be retained.

Quoted from HoYoverse’s notice on HoYoLAB.