Ganbaru Watashi no Kakei Diary (ガンバルわたしの家計ダイアリー) is a Nintendo DS game developed and published by Square Enix in Japan. It is a life-simulation game that allows players to manage their own finances. Players take on the role of a young adult who has just moved out of their parents’ house and is now living on their own. The goal of the game is to manage their finances by balancing income and expenses. Players can work at various jobs, buy and sell items, and make investments. They must also manage their time efficiently, as different activities require different amounts of time. The game also features a virtual pet system, allowing players to take care of a virtual pet and earn additional income. Ganbaru Watashi no Kakei Diary is a great game for those who want to learn more about managing their finances and lead a more responsible life.