You have to be careful during the 6-9 el relationship section it is easy to not go back to sleep and soft lock your relationship building for multiple characters
The gameplay is structured in such a way that it makes sense to complete all the quests and build all the relationships with everyone. And in the event of fatal events, it is possible to replay the unsuccessful episode.
Therefore, autosaves are not needed there. Although they are also created at the beginning of each new game day.