All I can say is, if you haven't read about the 8th & 9th floors, you will miss the main reason why even all of those are happening and why the floors are built. It will really be hard to accept nor understand why the MC is getting this much "perks" or benefits from the tower but all the answers are in those two floors. And for me, when I learned about it, I cried because it was beautiful. And I even think that the main character for a moment there is Frost more than Junho (≧▽≦) but I can say reading it to the end will actually answer your questions here and it is worth it.
