Green Legend Ran

What's left of Earth is a desert. Not because of war or nukes, but because humanity polluted everything so thoroughly that alien monoliths crashed down, absorbed the oceans and atmosphere, and now the only water left on the planet seeps from these towering alien structures called Rodo. A religious cult controls access to them. Everyone else is just trying not to die of thirst. Ran is a teenager with a personal vendetta — his mother was killed by a man connected to the Rodo cult, and he's been carrying that anger ever since. Early on, he crosses paths with Aira, a quiet silver-haired girl who seems to have some strange connection to the Rodo themselves. That meeting pulls him into something much bigger than revenge. This is a 3-episode OVA from 1992, so it moves fast and stays lean. The early 90s animation has that specific hand-drawn texture that holds up in ways CG never quite matches — think Nadia: The Secret of Blue Water or Future Boy Conan in terms of aesthetic warmth, but the world here is drier and more desperate. If Nausicaä of the Valley of the Wind left you wanting more post-apocalyptic coming-of-age stories with environmental weight, Green Legend Ran scratches that itch without asking for a huge time commitment. It's emotional without being manipulative, and the soundtrack does real work building atmosphere. Short, underrated, and genuinely worth the afternoon it takes to watch.