{"rewrite":{"id":"r_d141fef19273d6cd89a8a5ae","clusterId":"c_ba2b2f0c18c8c9d5434c8ffa","slug":"sega-opens-108-free-seats-for-mahjong-mj-event-at-osaki-headquarters","model":"deepseek-v4-1-flash","headline":"Sega Opens 108 Free Seats for Mahjong MJ Event at Osaki Headquarters","summary":"Sega will hold an official offline event for its online mahjong game Sega NET Mahjong MJ at the Sega Osaki Headquarters in Tokyo on Saturday, December 26, 2026, from 13:00 to 19:00. Twelve professional mahjong players will appear as guests and play against attendees on MJ Mobile. Participation is free and limited to 108 people, with applications accepted through Monday, November 16.","whyItMatters":"Sega is capping attendance at 108 free seats and taking applications for under two weeks, which keeps the event small and puts a US-style convention draw inside a corporate headquarters instead of a public hall.","webCardHtml":"\u003cp\u003eThe event runs from 13:00 to 19:00, with doors opening at 12:00, at the Sumitomo Fudosan Osaki Garden Tower in Nishi-Shinagawa, Shinagawa-ku, a six-minute walk from JR Osaki Station\u0026#39;s New West Exit. Attendees and the twelve guest professionals play directly against each other on MJ Mobile, Sega\u0026#39;s mobile version of the game. Applications close at 23:59 on Monday, November 16, and the participation fee is free.\u003c/p\u003e\u003cul\u003e\u003cli\u003e\u003cstrong\u003eSeiichi Kondo\u003c/strong\u003e: Professional mahjong player, guest\u003c/li\u003e\u003cli\u003e\u003cstrong\u003eKen Sonoda\u003c/strong\u003e: Professional mahjong player, guest\u003c/li\u003e\u003cli\u003e\u003cstrong\u003eDoki Asai\u003c/strong\u003e: Professional mahjong player, guest\u003c/li\u003e\u003cli\u003e\u003cstrong\u003eEmu Aikawa\u003c/strong\u003e: Professional mahjong player, guest\u003c/li\u003e\u003cli\u003e\u003cstrong\u003eNaoya Kono\u003c/strong\u003e: Professional mahjong player, guest\u003c/li\u003e\u003cli\u003e\u003cstrong\u003eMomo Matsushima\u003c/strong\u003e: Professional mahjong player, guest\u003c/li\u003e\u003cli\u003e\u003cstrong\u003eAkihiro Shiozawa\u003c/strong\u003e: Professional mahjong player, guest\u003c/li\u003e\u003cli\u003e\u003cstrong\u003eRisako Kaji\u003c/strong\u003e: Professional mahjong player, guest\u003c/li\u003e\u003cli\u003e\u003cstrong\u003eHanana Uematsu\u003c/strong\u003e: Professional mahjong player, guest\u003c/li\u003e\u003cli\u003e\u003cstrong\u003eAi Yamamoto\u003c/strong\u003e: Professional mahjong player, guest\u003c/li\u003e\u003cli\u003e\u003cstrong\u003eShoa Saito\u003c/strong\u003e: Professional mahjong player, guest\u003c/li\u003e\u003cli\u003e\u003cstrong\u003eMiyu Nogi\u003c/strong\u003e: Professional mahjong player, guest\u003c/li\u003e\u003c/ul\u003e","blueskyPost":"Sega NET Mahjong MJ's offline event caps attendance at 108, the seat count tied to the game's name. The cap keeps the room small enough for twelve pros to rotate through tables rather than headline a stage.","twitterPost":"Sega NET Mahjong MJ's 108-seat cap matches the game's name, so the draw is table time with twelve pros, not a stage show.","threadsPost":"Sega NET Mahjong MJ is taking over Sega Osaki Headquarters for six hours with twelve pros and 108 attendees. The seat count tracks the game's name, and the format looks built for table rotation rather than stage presentations.","newsletterBlurb":"Sega will host an official offline event for Sega NET Mahjong MJ at its Osaki headquarters in Tokyo on December 26, 2026. Twelve professional mahjong players will attend and play against users on MJ Mobile. Entry is free and capped at 108 participants, with applications closing November 16.","attributionJson":"[{\"source\":\"4Gamer.net\",\"url\":\"https://www.4gamer.net/games/226/G022696/20261105058/\",\"title\":\"Sega NET Mahjong MJ Official Offline Event to Be Held at Sega Headquarters on December 26\"}]","lintFlagsJson":null,"lintHits":0,"costUsd":0,"inputTokens":5365,"outputTokens":965,"status":"published","repairAttempts":0,"nextRepairAt":null,"factsAttemptedAt":1793881199,"createdAt":"2026-11-05T12:14:55.000Z","publishedAt":"2026-11-05T12:18:53.000Z","updatedAt":"2026-11-05T12:18:53.000Z"},"cluster":{"id":"c_ba2b2f0c18c8c9d5434c8ffa","canonicalTitle":"「セガNET麻雀 MJ」，公式オフイベントを12月26日にセガ本社で開催","representativeArticleId":"a_73f338b2adb5af9bcee1b06b","sourceCount":1,"writtenSourceCount":1,"writeAttempts":0,"isSolo":true,"entitiesJson":"{\"anime_titles\":[],\"manga_titles\":[],\"work_titles\":[\"Sega NET Mahjong MJ\"],\"studios\":[\"Sega\"],\"people\":[],\"type\":\"event\",\"domain\":\"games\",\"is_roundup\":false}","contentType":"news","status":"published","firstSeenAt":"2026-11-05T11:43:22.000Z","lastSeenAt":"2026-11-05T11:43:22.000Z","updatedAt":"2026-11-05T12:18:53.000Z"},"attribution":[{"source":"4Gamer.net","url":"https://www.4gamer.net/games/226/G022696/20261105058/","title":"「セガNET麻雀 MJ」，公式オフイベントを12月26日にセガ本社で開催"}],"entities":{"anime_titles":[],"manga_titles":[],"work_titles":["Sega NET Mahjong MJ"],"studios":["Sega"],"people":[],"type":"event","domain":"games","is_roundup":false},"keyFacts":["Sega NET Mahjong MJ's official offline event takes place at Sega Osaki Headquarters in Tokyo on Saturday, December 26, 2026.","The event runs from 13:00 to 19:00, with doors opening at 12:00.","Twelve professional mahjong players will appear as guests and play against users on MJ Mobile.","Participation is free and planned for 108 people.","Applications close at 23:59 on Monday, November 16, 2026."],"pageLinks":{"healthSlugs":["sega-net-mahjong-mj","sega"],"storySlugs":[],"entities":[{"slug":"sega-net-mahjong-mj","supported":0,"disputed":0,"contradicted":0,"unverified":12,"overall":"unverified","story_count":8,"has_dossier":true},{"slug":"sega","supported":12,"disputed":0,"contradicted":0,"unverified":89,"overall":"green","story_count":204,"has_dossier":true}],"stories":[],"entitiesOk":true,"storiesOk":true}}