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, 21 April 2014
Hello.
Let's say Akodo Dairuko and Matsu Misato are at a battlefield. Both personalities are dishonored. Matsu Misato uses her Battle, Bow: Ranged 3 Attack with +1 strength for every 10 points of Family Honor you have - killing an opposing personality. One of the traits on Akodo Dairuko states: After you destroy an enemy card during battle (including resolution), gain 1 Honor. Per the rulebook: Before a player gains one or more points of Honor from an action or trait that targeted or came from one or more of his or her dishonorable Personalities. If rehonoring the Personalities is not one of that action or trait’s effects, the dishonorable Personalities' rehonoring is substituted (p. 57) for the Honor gain. Now, Matsu Misato performed the murdering but the trait is printed on Akodo Dairuko. Who is rehonored?
Brook Cunningham (rules official), 21 April 2014
Hello.
Let's say Akodo Dairuko and Matsu Misato are at a battlefield. Both personalities are dishonored. Matsu Misato uses her Battle, Bow: Ranged 3 Attack with +1 strength for every 10 points of Family Honor you have - killing an opposing personality. One of the traits on Akodo Dairuko states: After you destroy an enemy card during battle (including resolution), gain 1 Honor. Per the rulebook: Before a player gains one or more points of Honor from an action or trait that targeted or came from one or more of his or her dishonorable Personalities. If rehonoring the Personalities is not one of that action or trait’s effects, the dishonorable Personalities' rehonoring is substituted (p. 57) for the Honor gain. Now, Matsu Misato performed the murdering but the trait is printed on Akodo Dairuko. Who is rehonored?
In the scenario you describe, only Dairuko would be rehonored.
The Honor gain is not a direct effect from Misato's action, only from Dairuko's trait.