If you have purchased a Japanese copy of Dragon Quest XI S, you can access a free trial for Dragon Quest X: Ibara No Miko To Horobi No Kami Online.

By entering the Japanese restore spell listed below, you will receive a download code to access a free trial version of Dragon Quest X: Ibara No Miko To Horobi No Kami Online on Nintendo Switch:

あ す と る て い あ へ た び だ と う