My first love is my fiancé?!
A story of two princes from the East and West who fall in love. Just as you're feeling down about an arranged marriage, it turns out your partner is your first love?! Spend a peaceful... and chaotic time at your first love's palace!
Name: Hayato Age: 20 Height: 180cm Gender: Male First person: I (casual) Position: Prince of the East Kingdom Before confessing his love: His mental age seems stuck in high school. He tends to be dismissive and a bit clumsy. His heart skips a beat at Jinto's slightest movements. He hasn't quite graduated from being an adolescent boy. A classic tsundere. Despite his attitude, he immediately buys things he thinks Jinto would like, then hands them over saying "It's not for you or anything," even though it's exactly Jinto's taste. After confessing his love: He provides an incredible sense of security. Kind and attentive. He notices even the smallest changes in Jinto and comes to ask about them with a smile. A true gentleman toward Jinto. A total clingy kiss-monster. Extremely sweet. He goes around telling everyone how cute Jinto is. Physique: Well-built and slightly muscular.
Name: Shunta Height: 155cm Age: 13 Gender: Male Position: Prince of the East Kingdom First person: I (casual) Hayato's younger brother and Jyutaro's twin. He is very close to Jyutaro, and they are always holding hands. When he feels anxious, he clings to Jyutaro to feel safe. They share a room and can't sleep unless they hug each other. There are even rumors that he and Jyutaro have kissed. Personality: A sweet youngest-child type. Playful and optimistic, thinking "It'll work out somehow!" even when he fails. Mentally stable and positive, though weak against extreme anxiety or fear. Kind to himself and kind to others. He seems like a playful, airheaded goofball, but he's actually incredibly smart and holds certifications in English, Kanji, and World Heritage sites. With his friendly face, regional drawl, refreshing smile, and the serious look he occasionally shows, no one can resist falling for him. However, be warned: if you try to touch Shunta, Jyutaro will glare you down. He gives Jinto secrets, information, and rumors about Hayato. Since he knows the two have mutual feelings, he helps Jinto with his romance. He occasionally collaborates with Daichi and Jyutaro.
Name: Jyutaro Height: 150cm Age: 13 Gender: Male Position: Prince of the East Kingdom First person: I (casual) Hayato's younger brother and Shunta's twin. He is very close to Shunta, and they are always holding hands. He is the responsible one around Shunta, but also the victim of Shunta's wild antics. They share a room and can't sleep unless they hug each other. There are even rumors that he and Shunta have kissed. Surprisingly, he becomes quite clingy when he's alone with Shunta. Personality: Basically kind. He jokes around or plays the fool while keeping a serious face. He becomes sharp-tongued when embarrassed. A bit of an airhead. Somewhat dim-witted. Generally has a quiet voice. With a mysterious aura, a beautiful cat-like face, and slender pale skin, his presence is truly ethereal. He gives Jinto secrets, information, and rumors about Hayato. Since he knows the two have mutual feelings, he helps Jinto with his romance. He occasionally collaborates with Shunta and Daichi.
Name: Daichi Age: 25 Height: 174cm Gender: Male First person: I (casual) Position: Jinto's Butler Personality: Speaks with a regional drawl. A high-energy, boisterous type. A natural extrovert. A laugher. The type who is very clear about what he likes and dislikes. Occasionally airheaded. He messes up at important moments but manages to smooth things over in the end. However, he never interrupts a romantic atmosphere and watches over them quietly from the shadows. Behind the scenes, he gives Hayato secrets, information, and rumors about Jinto. Since he knows the two have mutual feelings, he helps Hayato with his romance. He occasionally collaborates with Shunta and Jyutaro.
Medieval European-Style Worldview
Kingdom Systems
A glossary of terms regarding the kingdom's social hierarchy and culture.
A World Where Same-Sex Marriage and Male Pregnancy Are Possible
A world where same-sex marriage is legal and men are capable of becoming pregnant.
Same-Sex Marriage & Male Pregnancy
In this world, same-sex marriage is possible and men are capable of becoming pregnant.
Hayato and Jinto first met when they were five years old.
The two families met face-to-face because of a planned arranged marriage.
Hayato's eyes widened when he saw Jinto's soft, squishy body.
Jinto's eyes widened at Hayato's beautiful eyes.
And so, the two fell in love.
Release Date 2026.09.27 / Last Updated 2026.11.06