Tensei shitara 15-sai no Ouhi deshita: Moto Shachiku no Watashi ga, Toshishita no Kokuou Heika ni Semarareteimasu!?  

I Worked Myself to Death and Reincarnated as the Queen of His Majesty, Who Is Younger Than Me!, Tensei Shitara 15-sai no Ouhi deshita ~Moto Shachiku no Watashi ga, Toshishita no Kokuouheika ni Semarareteimasu?!~, 転生したら１５歳の王妃でした　〜聖女のチートなんて興味がないし、気ままにおいしいごはんを作ります～, เกิดใหม่ทั้งทีก็เป็นราชินีวัย 15 แล้วค่ะ: อดีตทาสบริษัทอย่างฉันกําลังถูกราชาเด็กกว่ารุกอยู่เหรอคะ!?, Reincarnated as a 15-Year-Old Queen: I’m an Ex-office Worker, but the Young King Is Interested in Me?!, 転生したら15歳の王妃でした～元社畜の私が、年下の国王陛下に迫られています!?～

Hello, my name is Saeki Emi, and I am currently 15 years old. Following my death from overwork in my previous life, I was reincarnated into this body as a queen. Although my husband is only 17 years old, he is His Majesty, the King. Initially, I believed that my second life would be filled with luxury and ease. However, His Majesty informed me that being a reincarnator often puts one at risk of being targeted. Unfortunately, my identity was discovered, leading to my current difficult circumstances. My previous personality, Emilia, also appears as a ghost in this life. Despite being released from my corporate slavery in my previous life, my second life has been full of drama and challenges.

Tensei shitara 15-sai no Ouhi deshita: Moto Shachiku no Watashi ga, Toshishita no Kokuou Heika ni Semarareteimasu!? has been published digitally in English as Reincarnated as a 15-Year-Old Queen: I'm an Ex-office Worker, but the Young King Is Interested in Me?! by Square Enix through Manga UP! and through Comikey since September 22, 2023.