Look for it, a fragment of the moon. A new story presented by the development staff of "moon." A boy who falls into the world of an RPG meets children who live hidden from the monster Adults, and journeys through a strange, dangerous, and mysterious world. The slightly bitter RPG "Stray Children" arrives as a specially designed "Treasure Box" containing a development art collection, a music CD, a cloth old map, and an acrylic keychain. -Another story of the "moon". A slightly bitter fairy-tale-style RPG by the staff who worked on "moon." The main game has been packaged after evolving to be easier to play through repeated updates to the download version on sale. This work, which received high acclaim from overseas media as well, is now a deluxe box edition. -A deluxe box edition packed with five treasures. In addition to the main game, the development document "Stray Book," a large volume of about 160 pages containing setting art and idea notes drawn during the 4-year development period. A music CD (with booklet) that lets you experience the world of the phantom RPG "Mikazuki" through chiptune, an A3-size cloth old map "The Eve of the World's Collapse," and an acrylic keychain "Tomodachi" of the protagonist and his partner Kenken. The main game and four deluxe bonuses are included in a dedicated box. -One day, what will you do if an Adult attacks you? The boy who fell into the world of the RPG arrives in a country of only children. You travel while searching for the "secret" of this world. In battles with the monster Adults you meet during your journey, not only "fighting" but also "words" are effective. If you touch an Adult's heart, you may be able to save its soul. A variety of attacks with a mini-game feel await you. The fun, sad, and sometimes melancholic music of Seromon, who created the music for "moon," envelops this mysterious world. [Contents] The development archive "Stray Book," about 160 pages. An experience music CD of the phantom RPG "Mikazuki" (with booklet). An A3-size cloth old map "The Eve of the World's Collapse." An acrylic keychain "Tomodachi." This product is rated by CERO for ages 15 and up.