Bleach has this sprawling, epic structure that feels like peeling layers off an onion—except way more exciting and with way more sword fights. If we're counting all the major story arcs, including filler (which some fans love to debate), there are roughly 15 distinct arcs from start to finish. The Soul Society arc is still my personal favorite—the tension, the betrayals, Ichigo's growth, it's just peak storytelling. Then you've got the Arrancar saga, which sprawls across multiple arcs like Hueco Mundo and Fake Karakura Town, each with its own flavor of chaos.
Later, the Thousand-Year Blood War arc brings everything full circle, though the anime hasn't fully adapted it yet. Filler arcs like the Bount or Zanpakuto Rebellion are hit-or-miss for some, but I enjoy how they flesh out the world. It's wild how much ground the series covers, from high school shenanigans to literal god-tier battles. Even if you skip fillers, the core arcs alone make Bleach feel like a marathon worth running.