Gargantia on the Verdurous Planet
I pick this anime because it's very good, in my opinion, and I don't think it will scare off someone from anime. It's comical, has some action, and I think it has a good message. It's not to inappropriate but it has some violents and mild adult humor in some parts. For the most part though, compared to most anime, it can be enjoyed by adults and teens. It's rated PG 13
So this takes place in the future and part of humanity lives in space and the other part lives on earth still. The people in space, The Human Galactic Alliance, has been fighting for its survival against a squid like race of beings called Hidiaazu. During a battle, the 16 year old lieutenant and Chamber, his battle and life support AI, are swallowed up into a distortion of time and space. After waking form his artificially induced hibernation Ledo sees he has landed on earth. At this time the earth is flooded by water and they landed on a ship called Gargantia. Ledo has no knowledge of earth's life or culture but is forced to live along side a messenger girl named Amy.
I hoped you guys liked my card. If you haven't watched this then you definitely should!