>>6219433ok found it
So during the meiji period not the meiji restoration japanese nationalists had good relations with some muslims, the main reason for the alliance was a mutual enemy with the west as both muslims and japan have suffered under the west's rule
the emperor nearly converted but it was stopped, im not sure on the exact reason but its rumoured the emperor was threatened by british diplomats not to another rumour is the rothschilds who japan owed a lot of debt to would destroy the country financially if they did
all in all it was a proposed idea that never happened due to foreign influence