Manabu takes his book in the public bath and puts it in a waterproof container or some shit to read....how will he turn the pages? is there even something like this?
If the waterproof bag is big enough it possible but there will be a lot of creases after you done reading
If it's wide enough i think you can manipulate the page from the outside. It won't be as effective as or as easy you'd imagine though.
I've heard of people trying it, I don't think it ended well. If the bath is hot enough it fogs up the plastic bag.
You can also get one for your phones. It's great for reading or listening to music while swimming. I play some music on it while floating