You need to invite her to the beach using Eros' PC, in his room.
Viewing post in Welcome to Erosland 0.0.14 comments
I'm also getting stuck here. Every time I try to invite her to the beach I get the response "I'm working right now, stupid." Can you not advance Hana until you have a 2nd girl to work the cantina? If so, how do I unlock more girls? Every time I go to the lab the only option I get is "back". Am I missing something?