Ah sorry for the late reply, you could actually go and search on How to download Gacha Cute on PC and it will show the result! But if you could not find one here's one but sorry it is kinda bad one: how to download Gacha cute on PC!
Link to download WinRAR: WinRAR, Download here!
Just incase you misunderstood the link to download the Gacha cute, here: https://akemi-natsuky.itch.io/gacha-cute-pc