This game is either very buggy or incomplete.

Why is it feels incomplete?
– All defeat CG are missing a layer or two, eye pupils are missing, some even missing nipples.
– Human enemies doesn’t add sperm on top of body after sex.
– No gallery
– Menu button doesn’t do anything

Inherit problem that this game has:
– Some attack last way longer than what the animation and effects suggests. If you defeat the enemy while they are attacking, you will sometimes get hit on where they last attacked.
– Doesn’t have enough motive to have empathy to human race near/at the end. One part at the mid game the mc says she hates human, then after a few long session of playthough without story, she suddenly acts like she know everything.
– There is no reason to upgrade anything but attack power.
– Weapon arts sucks! They just do slightly more damage while locking you into a long attack animation.
– The same variation of new weapon that you get is just upgrade from previous, and there is no reason to use greatsword at all. While sword are just the better weapon overall, the slower attack from the other weapon variation doesn’t do enough damage to worth the risk.

Since the dev said that he is going to update the game, I’d say just wait until the game is more enjoyable.

Edit: Oh yeah, the regular enemies in this game are extremely easy. Just walk past them and attack from behind.