Where it comes from
Japanese-language document: Pokémon Center stores and cafés, 2021 Inside Games · 23 November 2021 Open the original ↗
The line in the source
そこには、「ハジメテノシンオウヘヨウコソ」という文字が。 In English
The receipt printed the message 'Welcome to Sinnoh for the first time'.