After Kazura Shino escaped to his family's ancestral house away from all the hyenas who were after his fortune where he won 4 billion yen in the lottery, another world suddenly appeared before him...The curtains rise for the spin-off of the popular "Takarakuji" (Lottery) series.The protagonist is the maid of the Istelle House, Marie! She devoted herself to the development of the town after being appointed as the "commercial development manager", such as building a public bathhouse!Familiar characters such as Valetta, Liese, and Zirconia are also very active. The first spin-off of this fantasy story in a different world!