The fan was added alongside the new heatwave event which may happen during the night.
I haven't encountered it myself but try lowering the temperature on the thermostat to combat the heat.
If you don't have the thermostat unlock it. It's essentially free money until it gets nerfed.
ZeroFiveSeven
Recent community posts
To hold hands, select your hands (second option, unlocked from the start) and click on Yuna's arms while she is lying on her back.
To turn Yuna around you need to raise both of her arms with the first tool (also unlocked from the start).
Once both of her arms are up click on Yuna's abdomen (belly) area.
You need to talk to Yuna to receive a quest from her. To do that, catch her during the night in the living room, select "gift" and click on the "talk" option.
Yuna will, essentially, ask you to get running shoes for her.
Running shoes can be obtained on the night market.
To get to the night market go for a run at night in the first area.
From what I understand, body levels reduce the wakefulness rise when interacted with.
You need to unlock the tongue by purchasing the 10000 Pcoin upgrade from the store. Once you do, select the tongue, mouse over the desired part and get to licking.
If the licking prompt does not appear move Yuna around until you find what you're looking for.
Define "can't do anything".
Yuna may not be in her room on some days.
If you mean you load into the night, perform one or two actions and immediately get ejected out then you have no stamina for the night sequence.
Personally, I don't bother with night sequences until I can get around 300 total stamina (from running) and bought the "comfy sheets" upgrade.