Here is an alternative positive ending to the story:
Kikuko soon returned with the tea. As they began to drink, Kikuko engaged her father in cheerful conversation about her studies and plans for the future. Her lightheartedness seemed to ease some of the tension in the room.
The narrator watched his father slowly relax and join in the discussion. For the first time, he saw a smile emerge on his father's stern face as he listened proudly to Kikuko's accomplishments.
Sensing the opening, the narrator then asked his father gentle questions about his work and life in the past years. To his surprise, his father opened up and the two were soon engaged in their own thoughtful dialogue.