Here are some hints about playing it right:

If at the end of Day 6 you don't see a short hot dream scene, this means you don't have enough relationship points and probably you missed something important on day 3. Enough points will also let you see something hot on day 5, they are all linked.

Please note that at some times you have to do any action to advance time (like visiting the nook or relaxing for an hour in room...), this is because there is no action happening at that time of the day but don't overdo it otherwise you're going to miss important things.

Try more, for example if you visit a location and find nothing at a specific time there might be something at a different time..