Assassination Classroom. There's many franchises I love and as much as I'd love to be the main character of a pokemon series, I'd like to age. And digimon would be fun except it's not always around. Assassination classroom would be fun because I'd have a great teacher that could help me do very well in my classes and I'd learn a lot of useful skills for survival and daily life through all my training to assassinate my teacher. It'd be the most fun and useful, plus, unlike many other franchises I adore, I wouldn't actually have to kill anyone unless absolutely necessary.