神椿市建設中。REGENERATE 特装版の買取情報

It appears that you're referencing a specific video game title for the Nintendo Switch, which is "神椿市建設中" (translated as "Kamitsubaki City Under Construction"), specifically its special edition (特装版) identified by the product code KTS-900-0306. This game is published by Kamitsubaki Studio.
If you have any specific questions about this game or need information about its features, gameplay, or how to obtain it, feel free to ask!