Ryou's optimism isn't naive, it's armor. The show knows the difference between a protagonist who laughs because he's stupid and one who laughs because he's already decided the world won't crush him, and it builds everything around that choice. The early episodes move with genuine leisure, letting you breathe alongside him as he explores, before the monsters and the weight settle in. By the time the animation starts falling apart in the final stretch, you've already stopped caring about the spectacle; you're watching because you need to know if this man survives being exactly who he is. The pacing will lose you if you want momentum. Stay if you want to understand why someone can be afraid and optimistic at the same time.
Ryou wakes up in Phi, a sprawling fantasy world, with water magic coursing through his veins and dreams of a peaceful apprenticeship. Those dreams shatter the moment he steps into the wilderness. Monsters prowl the remote lands, and survival becomes his first and only lesson. What keeps him going isn't determination or grit, but something simpler: Ryou refuses to panic. He's naturally clever, quick to adapt, and blessed with an unusual gift that lets him live far longer than any human should. Two decades blur together as he fights, learns, and grows stronger. Each desperate encounter pushes his magical power higher, until he stands among the greatest mages alive. But reaching the top of the tower is just the beginning. A chance meeting with someone unexpected changes everything, yanking him into a conflict he never signed up for. Now Ryou has to figure out if all those years of survival were actually preparation for something far bigger than himself.