In order for you to play RKGK / Rakugaki on Windows with minimal graphics settings, your computer must meet the following requirements
Operating System:
Windows 10
Processor (CPU):
Intel Core i5-3470 or AMD Ryzen 3 1300X
Memory (RAM):
8 GB RAM
Graphics Card:
NVIDIA GeForce GTX 750, 2 GB or AMD Radeon HD 7850, 2 GB or Intel Arc A370M, 4 GB
In order to play RKGK / Rakugaki on Windows with maximum graphics settings, you need a computer with a configuration no worse than the following
Operating System:
Windows 10
Processor (CPU):
Intel Core i7-4770 or AMD Ryzen 5 1600X
Memory (RAM):
8 GB RAM
Graphics Card:
NVIDIA GeForce GTX 1070, 8 GB or AMD Radeon RX Vega 56, 8 GB or Intel Arc A750, 8 GB