Examining the Radiance again will prompt you to enter the BCNM "The Wyrm God". Entering the battlefield consumes your Crimson traverser stone.
You can receive Atma, Temporary Items and Cruor Enhancements from the Cruor Prospector and Atma Infusionist NPCs in the area before entering.
Defeat Shinryu. This is a 6 person BCNM battlefield. All party members must possess the Crimson traverser stone, obtained with 10,000 Cruor and one Traverser stone upon entry to Abyssea - Empyreal Paradox, to enter the battlefield. Buffs and TP are not lost when entering the battlefield. Shinryu is susceptible to all weakness trigger conditions as any other Abyssean Notorious Monster.
The time limit to kill Shinryu is 30 minutes.
After defeating Shinryu, talk to Prishe for a cutscene. The cutscene starts the next quest.
Drops will be loaded into the Treasure Pool upon defeat of Shinryu. Items are loaded into the pool then the party is ejected from the Battlefield and the treasure may then be distributed.
As this Battlefield is an Abyssea area, targeting the weaknesses may greatly improve the drop rates on certain items, moving categories from "One of" (into) Multiple drops. The accessory item drops appear at this time to be based on achieving magic weakness. The weapon drops appear at this time to be based on achieving physical weakness. An item will not load in the treasure pool if all participants have the item already.
Prishe, the sole survivor of mankind's ill-fated confrontation with Promathia, speaks of the Twilight God's transformation into a fearsome embodiment of terror and dread. The final battle is at hand, and the stakes are high: the very survival of Abyssea!