The Library of Orda Palace
When to do it: After finishing your mission in Orda Palace
Reward for Completion: None
How to Trigger: Go to the 3rd Floor Library of Orda Palace (refer to the screenshot above).
Objective: Watch the cutscene
Leia’s Failure
When to do it: After finishing your mission in Orda Palace
Reward for Completion: Psychic Ring
How to Trigger: Go to Talim Medical School – Outpatient Wing Examination Room 5 (refer to the screenshot above).
Objective: Get the Harmonica Grass from the loot bags in Arklund Quag
Part 2/2: After being able to travel between Rieze Maxia and Elympios, go back and talk to Prinn in the Examination Room 5 to finish the sub-event.
Wither the Wyvern
When to do it: After finishing your mission in Orda Palace
Reward for Completion: None
How to Trigger: Go to the area where you left your Wyvern in Barnauer Highroad – Southeast Region (refer to the screenshot above).
Objective: Watch the cutscene
Sustaining Anxiety
When to do it: After being travel between Rieze Maxia and Elympios
Reward for Completion: None
How to Trigger: Sleep at the Inn in Fennmont two times (refer to the screenshot above).
Objective: Watch the cutscene
V
August 25, 2013 at 6:20 PMon The Cycle of Rieze Maxia you can actually do it the first time in fenmont if you play as jude, just for the record
Cyril
September 4, 2013 at 6:08 PMFor “Professor Haus’ Research,” apparently it’s exclusive to Jude’s story and you can’t activate the quest while you’re playing Milla’s story.
Sources:
http://www.gamefaqs.com/boards/616012-tales-of-xillia/67058528
http://www.ps3trophies.org/forum/tales-xillia/207180-sub-events-everything-you-need-know.html#post3831334
Kiren
October 27, 2013 at 10:23 PMI got the Sustaining Anxiety event but it says to be continued? Is there a part two to this?