It seems a bit more logical for it to be in the top. Regarding the spoilers in the title, you can just hide(like for example writing them in black since the bg is also black, so you would have to select it if you wanted to see it) the titles for those few chapters or place them at the bottom.
It seems a bit more logical for it to be in the top. Regarding the spoilers in the title, you can just hide(like for example writing them in black since the bg is also black, so you would have to select it if you wanted to see it) the titles for those few chapters or place them at the bottom.