@Vacxy I don't know in what parts of South America you are talking about though, besides, the key word of teen pregnancy is "teen", so the age range is the same in any part of the world.
Why do peopl compare Tanabe with Mizuzu's dad? The dad just seems like a very jolly dude while Tanabe is just a generic pervy (with good taste) high schooler.
Well to be fair, if they teach english in katakana then her not doing so well is very understandable, imagine knowing a langage and then some teacher tells you that you need to learn it using characters that can't even be used to pronounce the words correctly, they don't even have an "L" sound...