Lucia, the first princess of the Kingdom of Faticia, meets Alicia, the daughter of a marquess, who laments that she never wants to be a villain's daughter. Lucia takes pity on Alicia for her future engagement to Lyle, Lucia's half-brother, leading Alicia to confide in Lucia that her engagement will be broken off and lead to her execution. To prevent the death of her father, the king, and an epidemic her brother starts, Lucia shift into action! A ten-year struggle that shapes the future of an NPC princess and a villainous daughter in a sim dating game begins! (Source: Manga Plaza)

Volume 1 (2022-10-31) 1. **Ochikobore Hanayome wa Hinata no Ai de Hanahiraku** (落ちこぼれ華嫁は日向の愛で花開く) \[Haori x Yamori Michikusa\] 2. **Ryuujin Hitou Monogatari: Oishii Gohan to Neko to Onsen ga Areba** (龍神秘湯物語～美味しいごはんと猫と温泉があれば～) \[Inaru x Mahiro Arisawa\] 3. **Keiyaku Fuufu ni Ai Aru Kekkon Seikatsu wo** (契約夫婦に愛ある結婚生活を) \[Moo Mochida x Aki Shikimi\] 4. **Watakushi no Shiawase wa, Ima Koko ni** (わたくしの幸せは、今ここに) \[Yuno Hanashino x Rino Mayumi\] 5. **Ayakashi Yashiki ni Ochita Hana** (あやかし屋敷に堕ちた花) \[Akiko Kawano x Machibari\] Volume 2 (2023-05-31) 1. **Shirohebi-sama no Hanayome wa, Ubawarete Ita Namae wo Torimodoshi Shiawase na Michi wo Ayumu: Ezuke sarete Uritobasareru to Omotte Itara, Matte iIa no wa Torokeru Youna Dekiai de shita** (白蛇さまの花嫁は、奪われていた名前を取り戻し幸せな道を歩む～餌付けされて売り飛ばされると思っていたら、待っていたのは蕩けるような溺愛でした～) \[Miko Yumoto x Midori Ishikawa\] 2. **Tamamushiiro no Renjou** (玉虫色の恋情) \[Gohachi Inanami x Aki Shikimi\] 3. **Wakimaeru no wo Yameta Ane Hime wa, Ikoku no Tei ni Aisareru** (弁えるのをやめた姉姫は、異国の帝に愛される) \[Risu Chairoi x Himari Suzuki\] 4. **Aru Kazoku Reijou no Haranbanjou na Jinsei** (或る華族令嬢の波乱万丈な人生) \[Yuta Umibara x Sasami Torigara\] 5. **Hana wa Kaitou ni Metorareru** (花は怪盗に娶られる) \[Hazuki x Machibari\] Volume 3 (2024-02-29) 1. **Hatsukoi to Yakusoku** (初恋と約束) \[Kira Shirara x Riko Toma\] 2. **Kokoro Koishi, Omohide no Kimi** (心恋し、おもひでの君) \[sawaco x Izumi\] 3. **Tori to Shoujo** (鳥と少女) \[Ponnu x Kogasa Amamiya\] 4. **Kimi no Egao ga Mitai kara** (君の笑顔が見たいから) \[Tarou Uki x Makiburo\] 5. **Sakenu Ouka no Hanayome wa Bukiyou na Hibari ni Aisareru** (咲けぬ桜花の華嫁は不器用な雲雀に愛される) \[Haori x Yamori Michikusa\] Volume 4 (2024-09-30) 1. **Munou no Kotori wa Reitetsu Gunjin no Itoshii Tsugai** (無能の小鳥は冷徹軍人の愛しいつがい) \[Yuzu Kuremitsu x Chiyoharu Asagi\] 2. **Watashi ni Amai Fiancé-sama** (わたしに甘い婚約者様) \[Rin Nonose\] 3. **Minikui Hanayome wa Ryuujin no Tsugai** (みにくい花嫁は竜神のつがい) \[Satsuki Aikawa x Machibari\] 4. **Aisare Nakatta Hanayome no Toaru Konin Tan: Hatsukoi no Kimi wa, Kekkon Aite no Otouto deshita** (愛されなかった花嫁のとある婚姻譚〜初恋の君は、結婚相手の弟でした〜) \[Chise Chidori x Ishikuru\] 5. **Sakiyomi Miko no Yomeiri: Kiraware Miko wa Youko ni Nozomareru** (先読み神子の嫁入り〜嫌われ巫女は妖狐に望まれる〜) \[Yoru Aoi x Rei Sekiya\] Volume 5 (2025-04-30) 1. **Hitoribocchi no Koi to Hana** (ひとりぼっちの恋と華) \[Senkari\] 2. **Kodokuna Inou Musume to Tokasareru Kokoro** (孤独な異能娘と溶かされる心) \[Sane Takada\] 3. **Ochikobore no Miko wa Haraiya ni Totsugitai** (落ちこぼれの巫女は祓い屋に嫁ぎたい) \[Satono Nonogaki x Airi Ayase\] 4. **Minage Shitara Kawa no Kamisama kara Aisaremashita** (身投げしたら川の神様から愛されました) \[Mimi Komota x Sasami Torigara\] 5. **Houseki no Utagoe Oshiru Dansou Reijou wa, Ayakashi Danna-sama ni Dekiai sareru.: Karasu no Shuuchakushin wa Shiawase to Yasuragi ni Michite Imashita** (宝石の歌声を知る男装令嬢は、あやかし旦那さまに溺愛される。～烏の執着心は幸せと安らぎに満ちていました～) \[Odayaka x Midori Ichikawa\] Volume 6 (2025-11-29) 1. **Reitetsu na Koushaku wa Aisuru Ryuu no Otome wo Nigasanai** (冷徹な公爵は愛する龍の乙女を逃がさない) \[Nanaso Shichito x Chiyoharu Asagi\] 2. **Kiki no Yomeiri** (鬼姫の嫁入り) \[Hanaki x Kouki Fuyutsuki\] 3. **Migawari Hanayome no Koufuku na Konin: Ikenie ni Sasagerareru Hazu no Otome no Dekiai Kekkon** (身代わり花嫁の幸福な婚姻　～生贄に捧げられるはずの乙女の溺愛結婚～) \[Kashiori Koike x Mirai Takaoka\] 4. **Suzuran no Hatsukoi** (すずらんの初恋) \[Uroko Uonome\] 5. **Meiji Koseki Nashi Musume wa Taitou Seinen wo Koifu** (明治戸籍なし娘は帯刀青年を恋ふ) \[Inaru x Izumi\]

"Let's work together to prevent the future you fear, shall we?" Eight-year-old "Mob Princess" Lutia made friends with "The Villainess" Alicia, who is scared of her fate, which she foresaw will end with her execution after her engagement is annulled. Lutia rescued the king, who was fated to die, with slime magic, in order to prevent future disasters. She also began mass cultivation of medicinal herbs to combat the coming plague, and the whole operation is going well, but then... an arson fire, which was not part of the original plot! It seems that his brother, the clumsy crown prince and the "seduction target", is involved behind the scenes....... "Don't worry," Lugia said, "I won't let you become the 'villainess'! I'll protect my friend, my family, and my country from the bad-end! A little princess will fight fate to change the story's plot with the power of friendship and her own wits in this domestic politics fantasy! (Source: TO Books, translated)