So to cut it short, this scene is not swap-friendly at all. I'm sharing it so people can use it if they really want to.
You don't have to worry about placing the .bsc files in any particular folder, you just need to be able to find them.
Understand that these settings will very likely not work for your characters, and you might very well have to make your own setups in Blender.


I included the coordinate (clothing) used in the userdata folder, using that you can apply the clothing to your own character.
In order to open BlendShape Creator in Koikatsu the default buttons are shift+B

Once you're there, having the female character selected, you search for "top". Make sure you have Highlight select on so you can visually see which is which.

Import Erina Camisole to the Camisole, and the other top. Set the values that show up on the right side to 100

Then search "Bot" and import the Erina pants file to the pants, and once again set the value to 100

-

For the other character I included Ragnar's pants BSC file, and the underwear.

To apply Ragnar's pants BSC, select the male (system counts them as female), once again search "bot" and load in Ragnar pants

To load in the underwear just search "shorts" and load in "gustav shorts". Once again, you want to set these values to 100.


