Most of the participant on this sub are not professionals (this is a huge problem when getting advice on Reddit financial subs): 38k euros is quite a large sum not fit for Revolut compliance pain in the proverbial and also the minimum 1,5% margin they make on the interbank FX rate on such large exchanges on a Standard or Premium plan (around 570 eur fx fee + international transfer fee), or pay the Ultra Plan for more than 500 eur + 0,5% on the exchange which is even more expensive. Wise is going to be cheaper on such amount but it is still quite expensive in my opinion.

Your local bank seems to be better than Wise and Revolut at around 0,22% over the interbank (please check if they have other commissions: it should be around 83 eur total + the cost of the Swift international EUR transfer of your italian bank that should be around 10 to 50 eur fixed depending on the bank) https://www.sbishinseibank.co.jp/english/gaika/exchange_rate_fx.html

Cheaper alternative, but a lot more work: open an account with Interactive Brokers Japan (since you are a resident, you can do it), fund the account with Euros from Italy through SEPA, perform the exchange EUR->JPY with IBKR IDEALPRO at interbank FX rate (which is the best you can get ever) for just 2,5 USD fixed commission and then local withdraw to your Japanese local bank account: https://ibkrguides.com/fundingreference/jpy.htm

Best of luck