A kid gets reincarnated with a broken sword and decides he's going to climb to the top anyway, one impossible fight at a time. The show builds a world where every strength is earned through consequence, not plot convenience. It's the kind of grind-focused fantasy where you watch someone get stronger because they refuse to stop, not because the story needs them to. Forty episodes means this isn't rushing. You're watching a real ascension.
Wangu Jian Di is a action and adventure and fantasy ONA.