Hello! Here is a simple guide how to get DLC "SeekGirl - Charming girl" for free.
Download dnSpy program, it can be easily found on softpedia site or on ****** releases.
After downloading open Steam and find a path to the game SeekGirl - D:\Program Files (x86)\Steam\steamapps\common\SeekGirl\SeekGirl_Dat a\Managed (something like that)
In a folder Managed we need a file named "Assembly-CSharp.dll"
When you found this file, open dnSpy and in this program open "Assembly-CSharp.dll".
Then you need to find a class named "Passs"
Find public void BtClick() and there we should edit 1 line, click Change Method (ctrl+shift+e)
Add a line YYSingleton<GameData>.Instance.isDlc1 = true; and press "Compile"
Then Click save everything in dnSpy program and OK. Check, if file "Assembly-CSharp.dll" changed in folder. If yes, everything is right, you can proceed to the game.
You should press 1 time at a button "1" and button "2" (which used to say "Buy DLC") now opens girls from DLC, without buying it in steam