I'm not sure what are the prerequist but this is what I have done in this update:
- Give money to Jacob until you can't anymore
- Go to the square at night and meet with Isabel until you have sex with her
- Go enough time to school so that Cheryl ask you to tutor her son
- Sometimes in the afternoon, if you go in the bathroom at home, you can catch Susan showering
- In the morning go to school and go to the boy's toilets, you will have a cutscene and if you go to the right of the toilet, you will meet Luke, buy wine and condom from him
- The night, go to the shop, you will meet a drunken Jacob
- In the morning go to the kitchen, Jacob and Susan will argue, and Emily will come talk to you, after that she will be a bit nicer to you and you will get her love card