Genuinely one of the best VNs I've played. It's incredibly wholesome despite suddenly marrying a demon. The flow is a bit odd at the beginning, but it smooths out quick and doesn't linger on awkward points.
The art direction is immaculate and I know it has a lot of work put into it. The choice to make the palette majority black and white with red accents is a scheme I always love.
I cannot remember any bugs or issues when playing, but I did only go through the male route on my playthrough. I love your work and can't wait for future updates.