Need help with Artemis engine's tool to extract/edit/repack script and images inside .PFS and .AST file

[tbhoang12]

Recently dev team of koihime series released free trial demo for their prequel reboot of this franchise koihime as Souten koihime (talks about the era of 18 kingdoms before the timeline 3 kingdoms of Shin koihime musous kakumei and ancestors of heroines in kakumei ).😀 I find it very interesting and want to try translate the demo.
I heard you said once in fuwanovel forum that you've had experience working with this Artemis engine - which is even more popular among japanese devs when compare with Catsystem 2 engine
Do you have any easy to use tool to extract repack Artemis engine's files ? (for example files like .pfs and script files in .ast files)
https://baseson.nexton-net.jp/souten/trial/