{"rewrite":{"id":"r_672044409361f47b9c015246","clusterId":"c_c19785aedf50ef4d86f1e59c","slug":"kotaro-lives-alone-creator-mami-tsumura-launches-new-manga-in-september","model":"deepseek-v4-flash","headline":"Kotaro Lives Alone Creator Mami Tsumura Launches New Manga in September","summary":"Mami Tsumura will launch a new manga titled Tanosuke no Kawazanyō (Tanosuke's Overly Optimistic Estimation) in Shogakukan's Big Comic Superior magazine's 19th issue on September 11, announced the magazine's 18th issue on Friday. Tsumura is the author of Kotaro Lives Alone, which ended in June 2023 after a decade-long run.","whyItMatters":"Tsumura is launching a new serialized work in Big Comic Superior, the same magazine that carried her long-running Kotaro Lives Alone, while her current series Ore no Baa-san remains ongoing in Big Comic Original.","webCardHtml":"\u003cp\u003eMami Tsumura returns to Big Comic Superior with Tanosuke no Kawazanyō, set to begin in the magazine\u0026#39;s 19th issue on September 11. The announcement appeared in the 18th issue released on Friday.\u003c/p\u003e\u003cp\u003eThe new work follows Tsumura\u0026#39;s current series Ore no Baa-san, which began as a one-shot in 2025 and launched as a regular series in Shogakukan\u0026#39;s Big Comic Original magazine in March 2026. That series remains ongoing and is available on the Big Comics website.\u003c/p\u003e\u003cp\u003eTsumura is best known for Kotaro Lives Alone, which ran in Big Comic Superior from 2015 to June 2023 and earned an Electronic Manga Award in 2018. The manga spawned a live-action series in April 2021 with a second season in April 2023, plus a Netflix anime in March 2022.\u003c/p\u003e","blueskyPost":"Mami Tsumura returns to serialized manga with Tanosuke no Kawazanyō, her first new series since Kotaro Lives Alone ended in 2023.","twitterPost":"Tsumura's new series Tanosuke no Kawazanyō marks her first manga since Kotaro Lives Alone concluded in 2023.","threadsPost":"Tsumura launches Tanosuke no Kawazanyō in Big Comic Superior's 19th issue, her first serialization after Kotaro Lives Alone wrapped in 2023.","newsletterBlurb":"Mami Tsumura, the author behind Kotaro Lives Alone, is launching a new manga titled Tanosuke no Kawazanyō in Big Comic Superior on September 11. The announcement came in the magazine's 18th issue. Her current series Ore no Baa-san remains ongoing in Big Comic Original.","attributionJson":"[{\"source\":\"Anime News Network\",\"url\":\"https://www.animenewsnetwork.com/news/2026-08-25/kotaro-lives-alone-author-mami-tsumura-launches-new-manga/.240982\",\"title\":\"Kotaro Lives Alone Author Mami Tsumura Launches New Manga\"}]","lintFlagsJson":null,"lintHits":0,"costUsd":0,"inputTokens":4159,"outputTokens":647,"status":"published","repairAttempts":0,"nextRepairAt":null,"factsAttemptedAt":1787930752,"createdAt":"2026-08-28T15:06:59.000Z","publishedAt":"2026-08-28T15:21:45.000Z","updatedAt":"2026-08-28T15:06:59.000Z"},"cluster":{"id":"c_c19785aedf50ef4d86f1e59c","canonicalTitle":"News\nKotaro Lives Alone Author Mami Tsumura Launches New Manga","representativeArticleId":"a_eac50fea81d13d11e7c8054b","sourceCount":1,"writtenSourceCount":1,"writeAttempts":0,"isSolo":true,"entitiesJson":"{\"anime_titles\":[],\"manga_titles\":[\"Tanosuke no Kawazanyō\"],\"work_titles\":[],\"studios\":[\"Shogakukan\"],\"people\":[\"Mami Tsumura\"],\"type\":\"announcement\",\"domain\":\"manga\",\"is_roundup\":false}","contentType":"news","status":"published","firstSeenAt":"2026-08-28T14:15:00.000Z","lastSeenAt":"2026-08-28T14:15:00.000Z","updatedAt":"2026-08-28T15:21:46.000Z"},"attribution":[{"source":"Anime News Network","url":"https://www.animenewsnetwork.com/news/2026-08-25/kotaro-lives-alone-author-mami-tsumura-launches-new-manga/.240982","title":"News\nKotaro Lives Alone Author Mami Tsumura Launches New Manga"}],"entities":{"anime_titles":[],"manga_titles":["Tanosuke no Kawazanyō"],"work_titles":[],"studios":["Shogakukan"],"people":["Mami Tsumura"],"type":"announcement","domain":"manga","is_roundup":false},"keyFacts":null}