A topic from AEG's L5R CCG Rules forum, copied for Oracle of the Void from a copy of the forum saved in October 2015, so pages it didn't save are missing. Players' names are left out; the rules officials are named. Rulings are as they stood on these dates; later rulings, the rulebooks and the Rules Archive may differ.
A player, 4 May 2009
I Do Not Die So Easily! 0G Reaction: After another player's action targets your Personality during a battle: Negate his destruction from the action's effects. After the resolution of your next Battle action this battle, destroy him. 1 Focus Value
10F crab attacks a province and 0F crane defends. crane duels with first action and wins duel. crab player reacts with I Do Not Die So Easily! and passes for his next action.
-does the crab die? -if the crane player passes as well does the crab stay alive?
Zen Faulkes (rules official), 4 May 2009
10F crab attacks a province and 0F crane defends. crane duels with first action and wins duel. crab player reacts with I Do Not Die So Easily! and passes for his next action. does the crab die?
No. Passing is not a Battle action (not stated outright, but implied at http://rules.l5r.com/Battles#Combat_Segment: ..."the Defender gets the first opportunity to either take a Battle Action or Pass.")
if the crane player passes as well does the crab stay alive?
Yes.