I hear you guys about the castle part feeling a bit forced. I'm trying to find ways to make it feel like it isn't that forced. This game is meant to be a setup for future games I want to make surrounding horsegirls and other kemonomimi girls. It is in its early stage, and I'll try to make the text parts less boring. This week I'll work on getting things hammered out in terms of balancing the writing out and making it more amusing before I move along too much.
Also in regards to the horsecock color, Roz-chan's penis is consciously colored as skin. Originally she had a different color but idk why I kept drawing her dong as skin colored, but I evidently kept rolling with it... However, the other two girls who are futa, are horsecock girls with their sheaths and everything! Keep in mind these girls a bit larger than Roz-chan in the endowed department if you catch my drift. If you want a preview/spoiler, I am linking some previews I uploaded on my twitter of them:
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(Suzuya)
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(Kashima)
I'll try to update both the current game version and demo taking everyone's feedback into consideration!