{"schema_version":"webtoonlib.llm.chapter.v1.3","generated_at":"2026-09-07T16:27:07.156Z","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":20,"chapter_key":"20","release_date":"2025-05-29","last_updated":"2026-02-02T02:27:14.733Z","summary":"Sakamoto's newly-formed team gets its first mission, with master sniper Heisuke joining Sakamoto and Shin on a trip to a museum. The mission quickly escalates as they encounter advanced technology, including stealth suits that give off distinct \"Ghost in the Shell\" vibes. Amidst the action, the chapter introduces a formidable and popular new character, Natsuki Seba, the head of the JCC's Weapon Production Department. While the found-family dynamic continues to grow, with moments of camaraderie between the crew, Seba's appearance signals a technologically advanced and dangerous new conflict.","summary_source":"graph_aggregator","summary_status":"generated","summary_verification":"unverified"},"summary":"Sakamoto's newly-formed team gets its first mission, with master sniper Heisuke joining Sakamoto and Shin on a trip to a museum. The mission quickly escalates as they encounter advanced technology, including stealth suits that give off distinct \"Ghost in the Shell\" vibes. Amidst the action, the chapter introduces a formidable and popular new character, Natsuki Seba, the head of the JCC's Weapon Production Department. While the found-family dynamic continues to grow, with moments of camaraderie between the crew, Seba's appearance signals a technologically advanced and dangerous new conflict.","key_events":["The team infiltrates a science museum to find a list of assassins, encountering Natsuki Seba."],"characters_involved":[{"name":"Natsuki Seba","role_in_result":"Supporting"},{"name":"Heisuke Mashimo","role_in_result":"Supporting"},{"name":"Shin Asakura","role_in_result":"Main"}],"transcript":{"available":false,"reason":"Hardsub chapter — image-only","endpoint":null},"spoiler":{"level":"auto","safe_teaser":"Sakamoto's newly-formed team gets its first mission, with master sniper Heisuke joining Sakamoto and Shin on a trip to a museum.","spoiler_summary":"Sakamoto's newly-formed team gets its first mission, with master sniper Heisuke joining Sakamoto and Shin on a trip to a museum. The mission quickly escalates as they encounter advanced technology, including stealth suits that give off distinct \"Ghost in the Shell\" vibes. Amidst the action, the chapter introduces a formidable and popular new character, Natsuki Seba, the head of the JCC's Weapon Production Department. While the found-family dynamic continues to grow, with moments of camaraderie between the crew, Seba's appearance signals a technologically advanced and dangerous new conflict."},"source":{"canonical_path":"/series/sakamoto-days-301993/chapter-20","citation_title":"WebtoonLib — Sakamoto Days #20","content_type":"chapter_summary","last_updated":"2026-09-07T16:27:07.156Z"},"data_status":"complete"},"untrusted":{"user_comments":[]},"see_also":{"for_series_detail":"/llms-series/sakamoto-days-301993"}}