People think this is slow...there is a bit of progress in every chapter, read the novel and then try again, that is a snooze fest, but is relaxing for the lack of some absurd objective the MC have to achieve, Slave Harem is a healing story, want to make us feel good.
The second slave is finally getting closer, took ts sweet time but is coming (eh), it looks like they changed skill cards with skill crystals, make more sense really.