The protagonist, Aria, is a career woman who serves as the captain of the guard for the crown prince of the Rosenberg Empire at a young age. Her lord, Crown Prince Julius, possesses wealth and power, along with looks that no one can deny—but unfortunately, his personality is trash. Aria is exhausted from being jerked around day after day. But surprisingly, Julius might just want to be with Aria...? A divine-visage crown prince VS a corporate-slave female knight—a precious master-subordinate quarrel couple is born! Cast Aria von Winterhalt: Ikumi Hasegawa Julius Otis Rosenberg: Kaito Ishikawa Luca Ritterhagen: Chikahiro Kobayashi His Majesty the Emperor: Shinichiro Matsumoto Yuno Reiole Rosenberg: Rie Hikisaka Deiter König: Ryota Iwasaki Aldrick Ingel: Shotaro Mochizuki Julius (Childhood): Saya Horigome Jack Arnaud de Goldvalley: Hana Shugai Noah: Saya Horigome Guard Corps Member: Kyohei Higashi Guard Corps Member: Takashi Asakura Royal Knight Order Commander: Norio Murakami Parliament Member: Shingo Kōchi His Majesty's Aide: Satoshi Reno Maid: Natsuko Okana Maid: Taeko Yachita Slave Trader Boss: Onigashima Okawara Slave Trader Underling: Tsutomu Noda Onigashima Slave Trader Underling: Iam Wada Onigashima Masquerade Ball Woman: Demon Noah Masquerade Ball Woman: Yumeko Kaiken Director Satoshi Mizuno Original Work Original Concept: Tasuku Okuda / Production: SORAJIMA Production Studio IMAGICA Infos / Imageworks Studio Provided by Dai Nippon Printing Co., Ltd. Title: "My Lord, My Heartburn Short Anime Version" Exclusive Streaming Platform: Short Drama App "BUMP" Streaming Start Date/Time: Thursday, September 11, 2025, 19:00 Overview: 25 episodes total / 2-3 minutes per episode Original Work: "My Lord, My Heartburn" (Original Concept: Tasuku Okuda / Production: SORAJIMA) Rights Notice: ©Tasuku Okuda / SORAJIMA / "Kimi-yake" Production Committee Production Studio: IMAGICA Infos / Imageworks Studio