as topic.

I believed your screen protector comes with manual. They might be in Jap, but there's a visual diagram instructions.

It's pretty easy actually, if you're using the Hori liquid one. Identify which protector goes on which screen first

1. Place the screen protector on the screen. Make sure the screen is clean from dust and fingerprints and there are no air bubbles. If there are, don't worry, gently ease it out and stick again (It's not done yet), but do not pull the little tab on the side at this stage.
2. Once you're sure it's fixed nicely with no air bubbles and the position is correct, gently pull the little tab slowly and peel off, making sure no air bubbles are trapped either.
3. Done!

Hope it helps

I botched my touch screen's screen protector application though, it's got three really tiny air bubbles while my top screen is perfect. Now I need to buy a new screen protector and remove the touch screen one... but I have no idea how to remove it instead

here're a few tips I was given when I bought my screen protector. Don't do it in a room with aircond, you'll get a lot of bubbles. Do it at somewhere steamy, places with boiling water works the best. I am not sure if these help, but they are what I was told, but then again, I got someone else to fix it for me.