Hey there @kouta,
Transfer in or out of GoDaddy?
Here's a link to all the different ways you can transfer a domain. Hope that helps.
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Welcome to the COmmunity!
Transfers of .TW domains to a GoDaddy account are not supported.
Transfers OUT of GoDaddy must be to a NeuLevel-accredited registrar. You will need to contact our customer support in order to escalate a request for the Authorization code for transfer.