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, 10 November 2008
I play a Hand of Osano Wo, against a personality with 2 followers. I destroy one of them. If I use The Arrow knows the Way, will I be able to make a Ranged Attack against the personality? Or wouldn't the ranged attack happen at all, because my target still has a follower attached?
Hand of Osano Wo:
Kiho Battle: Target your unbowed Monk and bow him if he is not Tattooed: Destroy a target enemy attachment. If its Personality now has no Followers, you may make a Ranged 3 Attack targeting him.
The Arrow Knows the Way:
Reaction: Before you target a Ranged Attack from an action performed by one of your Personalities with a Chi of 3 or higher: The Ranged Attack may target a Personality with attached Followers.
Dan Jacobson (rules official), 10 November 2008
I play a Hand of Osano Wo, against a personality with 2 followers. I destroy one of them. If I use The Arrow knows the Way, will I be able to make a Ranged Attack against the personality? Or wouldn't the ranged attack happen at all, because my target still has a follower attached?
Hand of Osano Wo:
Kiho Battle: Target your unbowed Monk and bow him if he is not Tattooed: Destroy a target enemy attachment. If its Personality now has no Followers, you may make a Ranged 3 Attack targeting him.
The Arrow Knows the Way:
Reaction: Before you target a Ranged Attack from an action performed by one of your Personalities with a Chi of 3 or higher: The Ranged Attack may target a Personality with attached Followers.
As per the card text on Hand of Osano-Wo, the condition on being able to make the Ranged Attack in the first place is the condition that he has no followers. You cannot make a Ranged attack, therefore you cannot react with The Arrow Knows the Way.