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Perfect Crown is Disney‘s new streaming king in the Korean drama category. The smash-hit rom-com, which launched on Disney+ on April 10, has achieved the platform’s biggest-ever viewership for a Korean series within five days of launch.

Disney+ announced the record on Thursday but declined to release specific viewership figures, saying only that Perfect Crown has become the No. 1 most-viewed Korean series premiere on the platform globally.

The series — which also airs domestically on MBC in Korea’s coveted Friday-Saturday prime-time slot — is set in an alternate-reality version of modern South Korea where the country remains a constitutional monarchy. Pop-star-turned-actress IU stars as Seong Hui-ju, the sharp-elbowed heir to a major Korean conglomerate whose commoner status grates against her ambition. Byeon Woo-seok plays Grand Prince I-AN, the king’s second son, whose royal title comes with little else. When mounting pressures push the two into a marriage of convenience, the arrangement proves harder to keep strictly transactional than either of them planned.

The pairing has generated outsize anticipation. IU, one of the biggest stars in Korean entertainment, arrives fresh off her acclaimed turn in Netflix’s When Life Gives You Tangerines, the sweeping Jeju Island romance that won best drama at last year’s Baeksang Arts Awards. Byeon, meanwhile, became one of the country’s most bankable leading men virtually overnight after the 2024 tvN romance Lovely Runner turned him into a phenomenon. The two previously shared the screen about a decade ago in SBS’s Moon Lovers: Scarlet Heart Ryeo (2016), when Byeon was still a little-known supporting player.

Perfect Crown is directed by Park Joon-hwa, known for a string of hits in the rom-com and fantasy genres, including What’s Wrong With Secretary Kim and the tvN mega-hit Alchemy of Souls. Yoo Ji-won wrote the series.

Perfect Crown streams on Disney+ internationally and on Hulu in the U.S. The show entered Disney+’s Global Top 10 within days and has trended in more than 40 countries.

Perfect Crown arrives at a moment when Disney+ is working rapidly to establish the kind of steady Korean content pipeline that Netflix has built over the past decade. The platform scored a major hit with the 2023 action-thriller Moving and has steadily expanded its K-drama slate with titles like A Shop for Killers, Gangnam B-Side and Light Shop. The company has several high-profile Korean projects in the pipeline, including a second season of A Shop for Killers; The Remarried Empress, starring Shin Min-a, Ju Ji-hoon and Lee Jong-suk; and The Koreans, a high-profile remake of FX’s The Americans starring Lee Byung-hun and Han Ji-min.

New episodes of Perfect Crown are released every Friday and Saturday at 11:20 p.m., Korean standard time. The series runs through May 16.