This is a really interesiting piece from Reuters on the machinations inside the Bank of Japan on ending negative rates.

The decision to do so was taken in December and came with the Bank under pressure from falling inflation, the economy losing momentum, differences between Ueda's two deputies, and Ueda's own wavering.

Here is link, a great read:

ueda boj Bank of Japan 09 November 2023  2

Bank of Japan Governor Ueda in the headlights