If you loved Riki-Oh 2: Child of Destruction, try Fist of the North Star: The Legend of Yuria
A bridge between a film you've already seen and one most people haven't. Here's what they share, and what the second one does that the first one doesn't.
You already loved

Riki-Oh 2: Child of Destruction
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Fist of the North Star: The Legend of Yuria
What they share
Theyboth carry the raw mood tag, and they sit in Action / Animation / Drama territory. If that's the register that drew you to Riki-Oh 2: Child of Destruction, the second film will land in a comparable space — through a different lens.
raw
What Fist of the North Star: The Legend of Yuria is
You scout Yuria’s childhood in a wasteland village where the sky is always orange. Then her brother vanishes after a raid and she spots a scarred stranger across the desert. The director pares the saga to the quiet rage inside a single gaze.