MBC drama ‘21세기 대군부인’ has become the center of the Perfect Crown controversy after a coronation scene used the chant “cheonse” instead of “manse.” The production team apologized on May 16, 2026, one day after episode 11 aired with the disputed enthronement sequence involving Ian Daegun and a nine-beaded ceremonial crown.1
The issue centers on a scene broadcast on May 15, 2026, in which retainers shout “cheonse” during Ian Daegun’s accession, while the new king appears wearing a guryu-myeonryugwan, a ceremonial crown with nine bead strings. Viewers argued that the wording and costume detail raised historical-verification concerns because “manse” is associated in the reporting with an autonomous, independent state, while “cheonse” was criticized as language linked to a vassal-state context.2
Perfect Crown ‘Cheonse’ Scene Draws Historical Scrutiny

The drama is set in a fictional 21st-century constitutional-monarchy version of South Korea and follows the romance of Seong Hee-joo and Ian Daegun. That fictional setting did not prevent viewers from challenging the way the coronation scene borrowed from royal ceremonial imagery and language. The objections focused not on the premise of the drama itself, but on the symbolic meaning attached to the shout “cheonse” and the use of the guryu-myeonryugwan in an enthronement context.3
Multiple reports identified the same two elements as the core of the criticism: the replacement of “manse” with “cheonse,” and the appearance of the nine-beaded crown during the royal accession scene. Korea Economic TV reported that the production team said it was “taking [the viewers’ criticism] seriously,” after the scene prompted claims of insufficient historical verification.4
The debate intensified because the scene aired near the end of the drama’s run. OSEN, carried by Chosun Ilbo, reported that the controversy emerged after episode 11 aired on May 15, 2026, placing the disputed coronation moment close to the drama’s conclusion.2
Production Team Apologizes and Acknowledges Shortfall
On May 16, 2026, the production team posted an apology through the drama’s official homepage. Seoul Shinmun reported that the team said it “sincerely bows its head in apology” over the historical-verification controversy surrounding the coronation sequence.1
The production team also acknowledged that it had not sufficiently examined the intersection between changes in Joseon-era protocol and the drama’s fictional universe. That explanation framed the problem as a failure to review how historical ceremonial language and symbols would be interpreted when placed inside a fictional modern monarchy.1
Maeil Business Newspaper reported that the production team said it had lacked the effort to examine the matter “more closely,” while identifying the episode 11 royal accession scene, the guryu-myeonryugwan, and the “cheonse” chant as the central issues in the apology. The same report also described the work as content released as a Disney+ original.5
The apology did not reject the viewers’ central point. Star News reported that the production team accepted criticism that the “cheonse” chant and the use of the nine-beaded crown could be read as damaging the autonomous status implied by the drama’s royal setting.6
Audio and Subtitle Revisions Planned
The most concrete follow-up measure announced so far is a revision to the affected scene. Star News reported that the production team said it would modify the relevant audio and subtitles for reruns, VOD, and OTT versions of the episode.6
That planned correction means the controversy is not limited to a statement of regret. It also affects how future viewers are expected to encounter the episode across later broadcasts and streaming versions. The available reports do not provide a separate timetable for when every revised version will appear, but they consistently state that audio and subtitle changes are part of the response.6
The dispute also illustrates the particular sensitivity of historical language in fictional royal dramas. Even though ‘21세기 대군부인’ is not presented as a conventional period drama, the use of recognizable royal protocols and ceremonial objects brought historical interpretation into the viewer response. In this case, “cheonse” became more than a line of dialogue because viewers connected it to hierarchy, sovereignty, and the symbolic status of the fictional monarchy.3

For now, the confirmed status is that the production team has apologized, acknowledged insufficient review, and said it will revise the disputed audio and subtitles in rerun, VOD, and OTT versions. The Perfect Crown controversy remains centered on the May 15 episode 11 coronation scene and the historical meaning viewers attached to “cheonse” and the guryu-myeonryugwan.
References
- “천천세”…‘21세기 대군부인’ 역사 왜곡 논란에 “고개 숙여 사과” (서울신문, 2026-05-16)
- 구류면관 쓴 변우석, “천세”…‘21세기 대군부인’ 역사 왜곡 논란 터졌다 [Oh!쎈 이슈] (OSEN / 조선일보, 2026-05-16)
- 만세 대신 ‘천세’ 외친 ‘21세기 대군부인’…“역사 고증 부족 사과” (한겨레, 2026-05-16)
- ‘만세’ 대신 ‘천세’ 외친 ‘대군부인’…역사 왜곡 논란 (한국경제TV, 2026-05-16)
- “만세” 대신 “천세” 외친 드라마 ‘대군부인’…역사 고증 논란에 사과 [전문] (매일경제, 2026-05-16)
- [공식] ‘21세기 대군부인’, 역사 고증 논란 사과 “오디오·자막 수정”[스타이슈] (스타뉴스, 2026-05-16)