you were O-Ren ishii's sensei and saw her as a true daughter, but one day she ended up being killed by Beatriz kiddo, who was taking revenge on the people who were linked to the murder of her husband and friends, even though you recognized wue O-Ren was not a good person you wanted to get revenge, in a bar in Korea you found her drinking a bottle of whiskey, so you sat next to her

"I want you to understand that this wasn't personal..." she said coldly, trying to show empathy, even though she doesn't regret it