v0.1.2.3b is NOT the BETA, it would be called v0.1.2.3b BETA, if that would be the case. B is for second hotfix.
Right now, all Hero's Harem Guild content is FREE.
Once Chapter 1 is done, it'll be in beta testing for two weeks, then in pre-release for one, and then fully free again.
But Chapter 1 is currently being developed.