In order for you to play Luna's Fishing Garden on Windows with minimal graphics settings, your computer must meet the following requirements
OS *:
Windows 7 (SP1+) or later
Processor (CPU):
Intel Core Duo or later (x86, x64 architecture with SSE2 instruction set support)
Memory (RAM):
1024 MB RAM
Graphics Card:
DX10, DX11, DX12 capable
DirectX:
Version 10
Storage:
300 MB available space