{"schema_version":"webtoonlib.llm.chapter.v1.3","generated_at":"2026-09-07T18:47:49.001Z","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":"Sakamoto Days","slug":"sakamoto-days-301993"},"chapter":{"number":31,"chapter_key":"31","release_date":"2025-05-29","last_updated":"2026-02-02T02:27:14.748Z","summary":"Following his brutal and efficient takedown of the assassins on the train, the chapter pivots to a heartwarming scene as Shin reunites with his adoptive father, Asakura, and the sniper Heisuke is officially welcomed into the Sakamoto crew. The peace is short-lived, however, as a sudden and dramatic shift in art style delivers a chilling introduction to the series' main antagonist, \"X,\" also known as Kei Uzuki. This haunting reveal establishes the formidable new threat looming over Sakamoto and his found family.","summary_source":"graph_aggregator","summary_status":"generated","summary_verification":"unverified"},"summary":"Following his brutal and efficient takedown of the assassins on the train, the chapter pivots to a heartwarming scene as Shin reunites with his adoptive father, Asakura, and the sniper Heisuke is officially welcomed into the Sakamoto crew. The peace is short-lived, however, as a sudden and dramatic shift in art style delivers a chilling introduction to the series' main antagonist, \"X,\" also known as Kei Uzuki. This haunting reveal establishes the formidable new threat looming over Sakamoto and his found family.","key_events":["Introduction of X: The antagonist Kei Uzuki is revealed as the mastermind behind the bounty on Sakamoto."],"characters_involved":[{"name":"Kei Uzuki","role_in_result":"Supporting"},{"name":"Asakura","role_in_result":"Supporting"},{"name":"Heisuke Mashimo","role_in_result":"Supporting"},{"name":"Shin Asakura","role_in_result":"Main"},{"name":"Tarou Sakamoto","role_in_result":"Main"}],"transcript":{"available":false,"reason":"Hardsub chapter — image-only","endpoint":null},"spoiler":{"level":"auto","safe_teaser":"Following his brutal and efficient takedown of the assassins on the train, the chapter pivots to a heartwarming scene as Shin reunites with his adoptive father, Asakura, and the sniper Heisuke is officially welcomed into the Sakamoto crew.","spoiler_summary":"Following his brutal and efficient takedown of the assassins on the train, the chapter pivots to a heartwarming scene as Shin reunites with his adoptive father, Asakura, and the sniper Heisuke is officially welcomed into the Sakamoto crew. The peace is short-lived, however, as a sudden and dramatic shift in art style delivers a chilling introduction to the series' main antagonist, \"X,\" also known as Kei Uzuki. This haunting reveal establishes the formidable new threat looming over Sakamoto and his found family."},"source":{"canonical_path":"/series/sakamoto-days-301993/chapter-31","citation_title":"WebtoonLib — Sakamoto Days #31","content_type":"chapter_summary","last_updated":"2026-09-07T18:47:49.001Z"},"data_status":"complete"},"untrusted":{"user_comments":[]},"see_also":{"for_series_detail":"/llms-series/sakamoto-days-301993"}}