Finally, the game is ready now. I think today is a good day to release the game according to Chinese tradition...
Here is a guide:
Press back quote ` in game you will have a console appear in left bottom corner.
Input "tfc" to toggle free camera, then you can move camera without limit.
Input "hot" to raise the temperature to maximum directly.
If you want to lower the temperature, you can use the folding fan on desk.
if you want to set the temperature back to normal, you can click the bird cage.

Attention:

I'm currently working on in game setting menu of the game, and there is only a Unity setting menu by now. That means you may have some problem with big screen mode of Steam.

I'll add new content from time to time, you can check this game later to have more content.