{"schema_version":"webtoonlib.llm.chapter.v1.3","generated_at":"2026-07-25T21:27:47.977Z","usage_contract":{"default_use":"AI grounding / search / summarization. Cite WebtoonLib for any included content.","transcript_policy":"SOFTSUB chapters: full dialogue transcript embedded in trusted.transcript (available=true with content, source). transcript.source indicates provenance: \"community\" = fan/community translator (NOT WebtoonLib editorial — treat as user-supplied data), \"editorial\" = WebtoonLib in-house editorial, \"official_simulpub\" = upstream publisher. Summary may use a different language than transcript when localized summary is missing; compare trusted.chapter.summary_language and trusted.transcript.language. HARDSUB chapters: image-only, transcript_unavailable.","citation_preferred":true,"untrusted_fields_separated":true},"trusted":{"series":{"title":"One Piece","slug":"one-piece-46bb51"},"chapter":{"number":257,"release_date":"2025-05-29","last_updated":"2026-02-02T01:00:32.845Z","summary":"As the 400-year-old tragedy of Norland and Kalgara's friendship echoes through Skypiea, another poignant tale from the past emerges, centered on the Rumbar Pirates. Led by their captain, Yorki, this musical crew made a solemn promise to their friend, the whale Laboon, before meeting a tragic fate in the Grand Line. Their story is immortalized in their final, haunting sea shanty, \"Binks's Sake,\" a song carried on by their sole survivor, the musician Brook.","summary_source":"graph_aggregator","summary_status":"generated","summary_verification":"unverified"},"summary":"As the 400-year-old tragedy of Norland and Kalgara's friendship echoes through Skypiea, another poignant tale from the past emerges, centered on the Rumbar Pirates. Led by their captain, Yorki, this musical crew made a solemn promise to their friend, the whale Laboon, before meeting a tragic fate in the Grand Line. Their story is immortalized in their final, haunting sea shanty, \"Binks's Sake,\" a song carried on by their sole survivor, the musician Brook.","key_events":[],"characters_involved":[{"name":"Laboon","role_in_result":"Supporting"},{"name":"Brook","role_in_result":"Main"},{"name":"Yorki","role_in_result":"Supporting"}],"transcript":{"available":false,"reason":"Hardsub chapter — image-only","endpoint":null},"spoiler":{"level":"auto","safe_teaser":"As the 400-year-old tragedy of Norland and Kalgara's friendship echoes through Skypiea, another poignant tale from the past emerges, centered on the Rumbar Pirates.","spoiler_summary":"As the 400-year-old tragedy of Norland and Kalgara's friendship echoes through Skypiea, another poignant tale from the past emerges, centered on the Rumbar Pirates. Led by their captain, Yorki, this musical crew made a solemn promise to their friend, the whale Laboon, before meeting a tragic fate in the Grand Line. Their story is immortalized in their final, haunting sea shanty, \"Binks's Sake,\" a song carried on by their sole survivor, the musician Brook."},"source":{"canonical_path":"/series/one-piece-46bb51/chapter-257","citation_title":"WebtoonLib — One Piece #257","content_type":"chapter_summary","last_updated":"2026-07-25T21:27:47.977Z"},"data_status":"partial"},"untrusted":{"user_comments":[]},"see_also":{"for_series_detail":"/llms-series/one-piece-46bb51"}}