Tales of the Abyss - Sidequest: Tales of Dragon Buster

Read description first
When To Start:
After clearing the Star of Malkuth event with the cow-boys.
Where To Start:
Nam Cobanda Isle
Deadline:
None
Requirements:
You must have finished the sidequest involving searching for the cow-boys.
You must have a Giant Fish Bone. You can get one in the Search Point over the small island to the right of Daath's continent.
Reward:
Luke's "Dragon Buster" title can only be obtained if you get the princess ending (you need at least a tiara/rod item to trigger it, meaning you have to avoid taking an upgraded sword/armor). It changes his outfit to resemble the weird-looking guy of the original Dragon Buster.
Play this during a second playthrough and onwards to get Luke's "Dragon Buster?" title. It gives Luke a minimal change...with a really freaky-looking mask.
The group helps Elion to complete his masterpiece, and so Luke decides to test it out. Nevertheless, he's extremely thrilled.
There are lots of things hiding in plain midair that can only be discovered by swinging the sword. If you collect the portraits, you get a group picture in the mini-game's menu.
...
I need more Dragon Buster. Screw the story!
Watch, get addicted, enjoy, and comment, everyone.