OnionGames official "doujinshi magazine," 「The Treasured Development Notebook」. Includes a level map useful for mastering 『Million Onion Hotel』, scratch concept art and chronology of development, lyrics and musical scores of the in-game BGMs, staff discussions, and much more! <Contents> ・Pixel art collection ・Staff discussions ・Chronological records ・Concept art ・「Uchuu No Uta」musical score & lyrics ・Game level maps ・Game formations *The language is Japanese. If you live overseas, please read the following and use this transferring service. → https://www.tenso.com/en/static/lp_shop_booth Business Process → http://oniongames.jp/onionstore/index.html#c2 OnionGames: http://oniongames.jp/