I'm glad you ended up enjoying it ^-^ Hehe, yeah, he's kinda adorable and terrifying at the same time x3 Don't tell any of my other characters cos if they ever become sentient, they'll probably murder me, but I think Castor might end up becoming my favourite yandere that I've created, haha.
I'll be working as much as I can on DD's next update throughout this month, and I'm planning for it to include more Castor/ia content along with introducing another character :3 So hopefully, you'll still like him once you've been able to spend more time with him x3