{"id":1917,"date":"2026-04-27T18:05:50","date_gmt":"2026-04-27T09:05:50","guid":{"rendered":"https:\/\/historyandfood.com\/?p=1917"},"modified":"2026-04-28T11:06:49","modified_gmt":"2026-04-28T02:06:49","slug":"21st-century-grand-duchess-romance-timeline-ian-heeju","status":"publish","type":"post","link":"https:\/\/historyandfood.com\/en\/21st-century-grand-duchess-romance-timeline-ian-heeju\/","title":{"rendered":"[Romance Analysis] 21st Century Grand Duchess: Ian X Hee-ju, From Strict Business to True Love"},"content":{"rendered":"<style>.kb-table-of-content-nav.kb-table-of-content-id1917_4bccae-8c .kb-table-of-content-wrap{padding-top:var(--global-kb-spacing-sm, 1.5rem);padding-right:var(--global-kb-spacing-sm, 1.5rem);padding-bottom:var(--global-kb-spacing-sm, 1.5rem);padding-left:var(--global-kb-spacing-sm, 1.5rem);border-top:3px solid var(--global-palette2, #2B6CB0);border-right:3px solid var(--global-palette2, #2B6CB0);border-bottom:3px solid var(--global-palette2, #2B6CB0);border-left:3px solid var(--global-palette2, #2B6CB0);border-top-left-radius:5px;border-top-right-radius:5px;border-bottom-right-radius:5px;border-bottom-left-radius:5px;box-shadow:0px 0px 14px 0px rgba(0, 0, 0, 0.2);}.kb-table-of-content-nav.kb-table-of-content-id1917_4bccae-8c .kb-table-of-contents-title-wrap{padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.kb-table-of-content-nav.kb-table-of-content-id1917_4bccae-8c .kb-table-of-contents-title{font-size:28px;font-weight:regular;font-style:normal;}.kb-table-of-content-nav.kb-table-of-content-id1917_4bccae-8c .kb-table-of-content-wrap .kb-table-of-content-list{line-height:2em;font-weight:regular;font-style:normal;margin-top:var(--global-kb-spacing-sm, 1.5rem);margin-right:0px;margin-bottom:0px;margin-left:0px;}@media all and (max-width: 1024px){.kb-table-of-content-nav.kb-table-of-content-id1917_4bccae-8c .kb-table-of-content-wrap{border-top:3px solid var(--global-palette2, #2B6CB0);border-right:3px solid var(--global-palette2, #2B6CB0);border-bottom:3px solid var(--global-palette2, #2B6CB0);border-left:3px solid var(--global-palette2, #2B6CB0);}}@media all and (max-width: 1024px){.kb-table-of-content-nav.kb-table-of-content-id1917_4bccae-8c .kb-table-of-contents-title{font-size:28px;}}@media all and (max-width: 767px){.kb-table-of-content-nav.kb-table-of-content-id1917_4bccae-8c .kb-table-of-content-wrap{border-top:3px solid var(--global-palette2, #2B6CB0);border-right:3px solid var(--global-palette2, #2B6CB0);border-bottom:3px solid var(--global-palette2, #2B6CB0);border-left:3px solid var(--global-palette2, #2B6CB0);}.kb-table-of-content-nav.kb-table-of-content-id1917_4bccae-8c .kb-table-of-contents-title{font-size:28px;}}<\/style>\n\n\n<p><strong>\u2705 Key Points of This Post (TL;DR)<\/strong><\/p>\n\n\n\n<p>1.The secret behind the high ratings! The dizzying contract marriage romance that started as \"enemies.\"<br>2.The crucial psychological shift when the cold capitalist Sung Hee-ju (IU) lets her guard down.<br>3.The real reason why Grand Prince Ian (Byeon Woo-seok), who played the fool, ends up risking his life.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/historyandfood.com\/wp-content\/uploads\/2026\/04\/ian-heeju-romance-eye-contact.jpg\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"538\" src=\"https:\/\/historyandfood.com\/wp-content\/uploads\/2026\/04\/ian-heeju-romance-eye-contact-1024x538.jpg\" alt=\"21\uc138\uae30 \ub300\uad70\ubd80\uc778 \uc774\uc548\ub300\uad70 \uc131\ud76c\uc8fc \ub85c\ub9e8\uc2a4 \uac10\uc815\uc120 \ubd84\uc11d\" class=\"wp-image-1921\" srcset=\"https:\/\/historyandfood.com\/wp-content\/uploads\/2026\/04\/ian-heeju-romance-eye-contact-1024x538.jpg 1024w, https:\/\/historyandfood.com\/wp-content\/uploads\/2026\/04\/ian-heeju-romance-eye-contact-300x158.jpg 300w, https:\/\/historyandfood.com\/wp-content\/uploads\/2026\/04\/ian-heeju-romance-eye-contact-768x403.jpg 768w, https:\/\/historyandfood.com\/wp-content\/uploads\/2026\/04\/ian-heeju-romance-eye-contact-18x9.jpg 18w, https:\/\/historyandfood.com\/wp-content\/uploads\/2026\/04\/ian-heeju-romance-eye-contact.jpg 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<div style=\"height:0px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Surpassing an 11.2% viewership rating, the MBC drama  has the entire nation obsessed!<\/p>\n\n\n\n<p class=\" translation-block\">Even amidst the heavy storyline of fierce royal political struggles, what truly makes viewers' hearts race is the breathtaking romance timeline between Grand Prince Ian (Byeon Woo-seok) and Sung Hee-ju (IU). We've perfectly analyzed the step-by-step phases of how their relationship, strictly bound by mutual benefit and business, transforms into an all-consuming 'true love.'<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Phase 1. Perfect Business Partners (The Wall of Enemies)<\/h2>\n\n\n\n<p>In the beginning, their relationship is as cold as ice. Grand Prince Ian, who must save the bankrupt royal family, and Sung Hee-ju, the heiress who needs global prestige. They hold each other's weaknesses and draw up a ruthless 'contract.'<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\" translation-block\">Timeline Point: Their conversations during this period are always edgy. Hee-ju dominates the dynamic by saying, \"The royal family will collapse without my money,\" while Ian provokes her, hiding his true intentions behind a relaxed smile. It\u2019s the epitome of an 'enemies-to-lovers' dynamic, where they view each other merely as 'useful chess pieces.'<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Phase 2. Cracks in the Solid Wall (Unconscious Jealousy)<\/strong><\/h2>\n\n\n\n<p>However, the seemingly perfect contract faces unexpected variables. Amidst endless terror and assassination attempts by royal opponents, the two survive life-and-death situations together, sharing a bond akin to comradeship.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\" translation-block\">Timeline Point: The emotional shift begins with 'jealousy' and 'anxiety.' Viewers feel a thrilling catharsis when Hee-ju loses her composure seeing Ian being friendly with another noblewoman, and when Ian throws away his rational judgment to rush in like a moth to a flame when Hee-ju is threatened by corporate raiders. The line \"We are just business\" gradually becomes a lie they tell themselves.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/historyandfood.com\/wp-content\/uploads\/2026\/04\/ian-heeju-protecting-scene.jpg\"><img decoding=\"async\" width=\"1024\" height=\"538\" src=\"https:\/\/historyandfood.com\/wp-content\/uploads\/2026\/04\/ian-heeju-protecting-scene-1024x538.jpg\" alt=\"21\uc138\uae30 \ub300\uad70\ubd80\uc778 \ubcc0\uc6b0\uc11d \uc544\uc774\uc720 \uc9c8\ud22c \uc2a4\ud0a8\uc2ed \uba85\uc7a5\uba74\" class=\"wp-image-1922\" srcset=\"https:\/\/historyandfood.com\/wp-content\/uploads\/2026\/04\/ian-heeju-protecting-scene-1024x538.jpg 1024w, https:\/\/historyandfood.com\/wp-content\/uploads\/2026\/04\/ian-heeju-protecting-scene-300x158.jpg 300w, https:\/\/historyandfood.com\/wp-content\/uploads\/2026\/04\/ian-heeju-protecting-scene-768x403.jpg 768w, https:\/\/historyandfood.com\/wp-content\/uploads\/2026\/04\/ian-heeju-protecting-scene-18x9.jpg 18w, https:\/\/historyandfood.com\/wp-content\/uploads\/2026\/04\/ian-heeju-protecting-scene.jpg 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Phase 3. You Over Power: True Love on the Line (Ending Arc)<\/strong><\/h2>\n\n\n\n<p>As the story enters the second half, the romance becomes deep and desperate. When the true identity of the mastermind targeting Ian is revealed and the royal family is engulfed in a bloodbath, the two finally face each other's true feelings.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\" translation-block\">Timeline Point: Sung Hee-ju, who believed money could solve everything, risks her 'life' rather than 'capital' for the first time to protect her husband. Grand Prince Ian is also willing to abandon his long-planned royal reform without hesitation if it means keeping Hee-ju safe. The narrative of a fake married couple willingly throwing everything away for each other creates the greatest romantic scenes of the drama.<\/li>\n<\/ul>\n\n\n\n<p>A bloody romance created by a strict capitalist and a tragic prince! Keep watching to see how their epic love story will conclude.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<div style=\"height:0px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>\ud83c\udfac [Romance Analysis] Ian X Hee-ju: The Ultimate Fake Dating to True Love Timeline<br><\/strong>From a cold-blooded business contract to risking their lives for each other! Watch our full English video review below to relive the heart-stopping tension and emotional turning points of this iconic couple.<br>(\ud83d\udca1 Tip for Korean Viewers: Please click the \u2699\ufe0f gear icon in the bottom right corner of the video to turn on 'Korean Subtitles (CC)' and watch!)<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"IU a Billionaire &amp; Byeon Woo-seok a Prince?! The Shocking &#039;21st Century Grand Duchess\" width=\"720\" height=\"405\" src=\"https:\/\/www.youtube.com\/embed\/6uaTDP_VlqQ?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<div style=\"height:0px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>\ud83d\udccc Binge-Watch the [21st Century Grand Duchess] Series<br><\/strong>Master everything from the worldview to the ending in one go before the drama airs!<\/p>\n\n\n\n<p><a href=\"https:\/\/historyandfood.com\/en\/21st-century-grand-duchess-characters-universe\/\">\ud83d\udd17 [Series 01] [MBC Hit Drama] 21st Century Grand Duchess Characters &amp; Universe Summary<br><\/a><a href=\"https:\/\/historyandfood.com\/en\/21st-century-grand-duchess-leaked-ending-villain\/\">\ud83d\udd17 <strong>\ud83d\udd17 [Series 02] [Exclusive Spoiler] 21st Century Grand Duchess Leaked Ending: The Chilling Identity of the 'Real Villain' Targeting Grand Prince Ian (Link the previously written post)<\/strong><\/a><\/p>\n\n\n\n<p><strong>\ud83c\udfac Hottest K-Content &amp; Netflix New Releases<br><\/strong><a href=\"https:\/\/historyandfood.com\/en\/netflix-love-affair-cast-plot-ending\/\">  \ud83d\udd17 Netflix Love Affair Characters &amp; Plot: Predicting Lee Dong-wook &amp; Jung Yu-mi's Shocking Ending<br><\/a><a href=\"https:\/\/historyandfood.com\/en\/netflix-love-affair-character-analysis-lee-dong-wook\/\">  \ud83d\udd17 Netflix Love Affair Character Relationship Analysis: Lee Dong-wook's Fall &amp; Hidden Traitors<\/a><\/p>\n\n\n\n<p><strong>\ud83c\udfae Marketer's Pick: Today's Fun Break<br><\/strong>If you are tired of tense palace intrigue dramas, I would like to recommend a mobile game that you can enjoy casually.<br><a href=\"https:\/\/loadmama.historyandfood.com\/\">  \ud83d\udd17 [Did you know there's a mobile game made out of Tteokbokki? Let's check it out! (Super Fun)]<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>[\ub85c\ub9e8\uc2a4 \ubd84\uc11d] \uc2dc\uccad\ub960 11.2% \ud654\uc81c\uc791 &#8217;21\uc138\uae30 \ub300\uad70\ubd80\uc778&#8217;. \uc774\uc548\ub300\uad70(\ubcc0\uc6b0\uc11d)\uacfc \uc131\ud76c\uc8fc(\uc544\uc774\uc720)\uc758 \uc228 \ub9c9\ud788\ub294 \uacc4\uc57d \uacb0\ud63c\ubd80\ud130 \ucc10\uc0ac\ub791\uc73c\ub85c \ubcc0\ud574\uac00\ub294 \uac10\uc815\uc120(Romance Timeline) \uc644\ubcbd \ubd84\uc11d! \uba85\ub300\uc0ac\uc640 \uad00\uc804 \ud3ec\uc778\ud2b8\ub97c \ud655\uc778\ud558\uc138\uc694.<\/p>","protected":false},"author":1,"featured_media":1921,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kadence_starter_templates_imported_post":true,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"categories":[1411],"tags":[1650,1649,1656,1654,1652,1657,1655,1653,1651],"class_list":{"0":"post-1917","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","6":"hentry","7":"category-korean-culture","8":"tag-21-","10":"tag-mbc","11":"tag-1654","12":"tag-1652","13":"tag-1657","14":"tag-1655","15":"tag-1653","16":"tag-1651"},"_links":{"self":[{"href":"https:\/\/historyandfood.com\/en\/wp-json\/wp\/v2\/posts\/1917","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/historyandfood.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/historyandfood.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/historyandfood.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/historyandfood.com\/en\/wp-json\/wp\/v2\/comments?post=1917"}],"version-history":[{"count":5,"href":"https:\/\/historyandfood.com\/en\/wp-json\/wp\/v2\/posts\/1917\/revisions"}],"predecessor-version":[{"id":1926,"href":"https:\/\/historyandfood.com\/en\/wp-json\/wp\/v2\/posts\/1917\/revisions\/1926"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/historyandfood.com\/en\/wp-json\/wp\/v2\/media\/1921"}],"wp:attachment":[{"href":"https:\/\/historyandfood.com\/en\/wp-json\/wp\/v2\/media?parent=1917"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/historyandfood.com\/en\/wp-json\/wp\/v2\/categories?post=1917"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/historyandfood.com\/en\/wp-json\/wp\/v2\/tags?post=1917"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}