Now I’m even more confused. Wikipedia lists the chapter you’re talking about, making it 10 real chapters and the bonus chapter. But the Japanese copy of Aqua I was looking at online for comparison didn’t have it.
Can someone with Japanese physical copies of Aqua 1 and 2 post pictures of the table of contents?
EDIT: @Belthazar If your copy of Aqua is an official English publication, can also post pictures of the table of contents?