{"status":200,"data":{"id":52205,"state":"active","merged_with":null,"canonical_url":"https://mangabaka.org/manga/52205/Adventure-21","authors":["Osamu Tezuka"],"artists":["Osamu Tezuka"],"description":"Remake of Tezuka's 1948 one shot ''The Mysterious Underground Man''\n\nThe parents of Isami Nishitani were killed aboard world's first stratospheric rocket ship Luna Park I when the ship exploded. Isami's father was a chemistry professor who left behind a ear of a rabbit which would make the brains of a human work considerably faster. Prof. Frankenstein succeeds in the experiment which transforms the the ear into a human being. Isami, intent on revenging his parents, volunteers as test pilot for earth-penetrating train Luna Park III invented by the designer Sullivan along several other people , including his pet rabbit who was transformed into a human being.","published":{"start_date":"1970-04-05","end_date":"1971-04-18","start_date_is_estimated":false,"end_date_is_estimated":false},"status":"completed","is_licensed":false,"content_rating":"safe","type":"manga","original_language":"ja","rating":72.85,"popularity":{"global":{"current":47072,"history":{"1d":47024,"1w":46913,"1mo":46560,"3mo":44077,"6mo":45557,"1y":32041}},"type":{"current":32199,"history":{"1d":32175,"1w":32107,"1mo":31913,"3mo":30659,"6mo":34023,"1y":25120}}},"last_updated_at":"2026-10-14T08:42:36.137Z","source":{"anilist":{"id":73317,"rating":8.2,"rating_normalized":82},"anime_planet":{"id":"adventure-21","rating":null,"rating_normalized":null},"anime_news_network":{"id":null,"rating":null,"rating_normalized":null},"kitsu":{"id":23351,"rating":null,"rating_normalized":null},"manga_updates":{"id":"5dnhqwt","rating":6.37,"rating_normalized":64},"my_anime_list":{"id":43317,"rating":null,"rating_normalized":null},"shikimori":{"id":43317,"rating":null,"rating_normalized":null}},"publishers":[{"id":43,"name":"Akita Publishing","canonical_url":"https://mangabaka.org/publisher/43/Akita-Publishing","language":"ja","note":"1996, 1999"},{"id":32,"name":"Kodansha","canonical_url":"https://mangabaka.org/publisher/32/Kodansha","language":"ja","note":"1980, 2011"},{"id":4978,"name":"Tezuka Productions","canonical_url":"https://mangabaka.org/publisher/4978/Tezuka-Productions","language":"ja","note":"2012"}],"rating_count":95,"final_volume":1,"total_chapters":6,"titles":[{"language":"en","traits":[],"title":"Adventure 21","is_primary":true},{"language":"zh-Hant","traits":[],"title":"21世紀冒險","is_primary":true},{"language":"zh","traits":[],"title":"21世纪冒险","is_primary":true},{"language":"ja-Latn","traits":["native"],"title":"Aventure 21","is_primary":true},{"language":"ru","traits":[],"title":"Приключение 21","is_primary":true},{"language":"th","traits":[],"title":"การผจญภัยในศตวรรษที่ 21","is_primary":true},{"language":"ja","traits":["native"],"title":"アバンチュール21","is_primary":true}],"cover":{"raw":"https://s4.anilist.co/file/anilistcdn/media/manga/cover/medium/43317.jpg","x150":"https://cdn.mangabaka.dev/imgproxy/plain/x150@1/aHR0cHM6Ly9zNC5hbmlsaXN0LmNvL2ZpbGUvYW5pbGlzdGNkbi9tZWRpYS9tYW5nYS9jb3Zlci9tZWRpdW0vNDMzMTcuanBn","x250":"https://cdn.mangabaka.dev/imgproxy/plain/x250@1/aHR0cHM6Ly9zNC5hbmlsaXN0LmNvL2ZpbGUvYW5pbGlzdGNkbi9tZWRpYS9tYW5nYS9jb3Zlci9tZWRpdW0vNDMzMTcuanBn","x350":"https://cdn.mangabaka.dev/imgproxy/plain/x350@1/aHR0cHM6Ly9zNC5hbmlsaXN0LmNvL2ZpbGUvYW5pbGlzdGNkbi9tZWRpYS9tYW5nYS9jb3Zlci9tZWRpdW0vNDMzMTcuanBn","blurhash":"|SI}nU%M-:M|IUocD$tQIUD,Rl9aocogWUxtRkxu01Riouoeohj^fmaft79Gaxobj]t8ozj]s,of%Lt8IXofoeM{jqRkjr_1xtj[M{IVaxV@t7RjMxM|WBt5oMxtt7j[t6IVaxt6xtofRoRlRjj?t3t7M|NHkCRjxtt5a$","width":225,"height":322},"anime":{"exists":true,"start":null,"end":null}}}