I want to report some possible bugs.
The rats in the sewer can go down to the water level, where you can't attack them but the rats can attack you.
In the animations of Sayahata on four legs on the floor, particularly in the final animation with the dogs, the arm that is left behind appears with a transparent red color.
And the gallery is not unlocked at the end of the game, but I'm sure it's because of the free version.