Well, I played it, watched the Korean rebel in the Steam review section and got an alarm on these developers once again. That's shady to ask people for money for stuff that is worth 5$ at max(expect Dungeon it was fun despite the flaws), on top of being rebellious in their forum sections, censoring every negative feedback, including constructive, and even questions about it.
Now I know why people don't trust visual novels these days. These explorations that are made for a quick buck on top with shady history and actions is unacceptable, just like SakuraGame, just as bad as those guys.