Quote Originally Posted by Talraen View Post
I have a feeling that's an error, because it doesn't make any sense
From the Digest:

"The premium plan is based on a monthly subscription. While it’s not finalized yet, we are currently assuming around 500 yen for the monthly fee. We would like you to first try it out free, then consider subscribing. The premium plan adds various additional features such as inventory management between retainers, the ability to purchase an additional retainer on the Mog Station, and also doubles the capacity of the saddlebag."

Unless that, too, is an error, it seems you will have to actually purchase the retainer. The reddit translator also mentioned Yoshi-P outright saying it wouldn't be free.