© S-GAME · official trailer stillWhat is on record
An optional boss at the Shrine Outer Gate of the Mountain of Imprisonment, a woman in lilac with red threads and a long blade, fought on a ruined stair. OfZenAndComputing rates the fight among the hardest for its short openings. Drops the Missing Lift Crank and a Sha-Chi Amber Fragment.
Who she is
Kui Yanyan, the Deranged, is an optional boss of the Mountain of Imprisonment at the Shrine Outer Gate (KeenGamer); Beebom lists her in its main table for the region. OfZenAndComputing rates her among the hardest fights, saying her wide, short openings punish greedy attacks, so hit once and back off. The rewards are the Missing Lift Crank, which activates the lift, and a Sha-Chi Amber Fragment (KeenGamer).
What the footage shows
PowerPyx's capture (Oct 29, 2026) opens on the Mountain of Imprisonment map at the Shrine Outer Gate, 46% complete, then on Soul leaping down a mossy stair between cliffs. The name bar "Kui Yanyan, the Deranged" is on screen from 0:10 to about 2:00. She is a slight figure in lilac robes with long hair and a long blade; the arena is a ruined path of broken stone and wooden racks. At 0:45 red threads whip from her, at 1:00 a teal dome bursts around Soul, at 1:10 a white flash, at 1:40 a red burst and at 1:50 a wide red sweep. The capture ends at 2:05 with Soul alone on the path.
Attacks
Not on record. No English guide published by Nov 2, 2026 names this boss's attacks or counters; the footage notes above are what this site has seen, and it does not invent tells from them.
Drops
The Missing Lift Crank and a Sha-Chi Amber Fragment (KeenGamer).
The phases above are the ones shown in official footage, named by their on-screen name bars. Tells, punish windows and health thresholds are added only once the retail fight has been checked; we do not invent them from trailer cuts.