Pretty clear that company that is made of members that do not have interest in creating VNs with erotic contents but do it because they have to for money will go down. Zwei clearly had its issues seeing how it was delayed for so long and them focusing on just trying to milk what they can out of Aokana.
They had anime, cafes, live events, novel version, psvita and ps4 editions, Switch edition (that they tweeted was able to make them little profit thanks to preorders in March. Pretty conserning if company tweets stuff like this imo.) and lastly soshage that failed and probably ate all their money.