Most likely....never.
Unless I make serious changes to gameplay mechanics, I won't update the public demo.

Yeah Chinese devs be poppin off these days, it's p cool

Hello.
I wouldn't consider it early access persay.
The game's "engine" is done. The price won't be increasing (I don't have any plans to increase it anyway).

New additions come by way of story events and new girls to have fun with.

My user name is a reference to a male's "little brother",  penis.

Speaking as someone who isn't Chinese but has read a bunch of Chinese xianxia stuff so might get your confusion better, "little brother" is common Chinese slang for dick, so it just means "big dick" but with some fun wordplay added in. As for what power it wields, idk about the specifics but dual cultivation means using sex to exchange and magnify vital energies to become stronger, and is based on (at least theoretical) ancient daoist practices