Do not Play this demo. It is a waste of space in your PC.
On to the short review for people that want to know what's in it.
Gameplay - For those that came from Axe Maiden, it's the mini-game Manic Magic. For those that don't know, it's a Puyo Puyo Tetris game. Color coded tetris if you will. It's not balance, I played it for a while and its not fucking balanced. I was doing well in one game, then the enemy dropped 3 FUCKING ROWS OF BLACK BLOCKS that made me insta lose, in NORMAL difficulty, against the most BASIC enemy. The RNG is too dumb to make it playable or enjoyable.
Story - It is a sequel/spinoff from their main title, Axe Maiden Vana. Story about a girl wanting the best dildo in the world, enough said.
H and Art - Not much difference with Axe Maiden Vana, the Art and H is pretty good I think. Since there is almost nothing here. Everything will be shown in the full release.
Overall - A stupidly bad demo, closer to a tech demo to show off their trash mini-game. It was not good in main game and will not be good in this spin off title where the only thing new they added was an easy mode which should have been a priority in the main game. They have good Art which is about the only good thing about this series as a whole.
Note this will be edited upon full release, once I get to playing it anyways.