This game adds a censoring effect to girl's genitalia.
This is because I'm Japanese and Japanese law doesn't allow me to publish it to Japanese people. However, this law allows me to publish it to people in other countries.
So, I decided to make a DLC as an uncensored patch and set country restriction for Japan.
I made this patch system already. Now, I requested Valve to set country restriction and review this DLC.
I'll inform here if there is any progress.
=== Added 11/26 ===
Of course, DLC is free!