Recently, the mosquitoes are getting more and more at night making me kept on waking up from all the buzzing and stings @@.

Seriously I have no idea how those mosquitoes got in my room since I’m staying on the fifth floor. And I don’t think they can actually fly their way up here and come in through the window.  @@ So I suspected that they are not from outside but inside instead and I was right when I finally found their nest in my room.