Reincarnated as a baroness's daughter, Olivia wondered if her magic power, far exceeding that of the royal family, might cause issues.
Thus, Olivia grew up quietly and unobtrusively, but her otaku heart from her previous life began to stir.
What truly captured Olivia's overflowing otaku heart were the 10-year-old ducal twins, Kaizex and Caroline.
E-book release by Librion. Cover illustration by Machami-sensei.
| Published | Title | # |
|---|---|---|
 | Become a Novelist https://ncode.syosetu.com › ... Olivia Lasbos, the daughter of a baron, is a reincarnated person. However, because she possesses vast amounts of magical power, far more than the kingdom's top royal family, she grew up modestly, hiding her magical powers and feeling a sense of crisis. |
| Become a Novelist https://ncode.syosetu.com › ... The Fun Otaku Life of the Second Wife of the Duke [E-book]. Author: Mika. Olivia Lasbos is a reincarnated person. Having possessed memories of her past life since birth, Olivia is extremely... |
 | Book Walker https://bookwalker.jp › series The Fun Otaku Life of the Second Wife of the Head Duke: The Final Boss's Daughter Pushes Her Adorable Twins (Libra Novel). Author: Mika. Illustrations: Masami. E-book; Light Novel. |
 | Amazon.jp https://www.amazon.co.jp › Top... Length: 119 pages. Length: 119 pages · Language: Japanese · Publisher: Librion · Accessibility: Learn more · Release date: July 15, 2025 · File size: 2.2 MB · Page Flip. |
 | Yodobashi https://www.yodobashi.com › pro... The Fun Otaku Life of the Second Wife of the Head Duke: The Last Boss's Daughter Pushes Her Adorable Twins (Librion) [E-book]. Mika (author), Masami (illustrator). |
 | sinoobi.com http://sinoobi.com › ncode 29 Apr 2025 — Completed. The Fun Otaku Life of the Second Wife of the Head Duke (Serialized Version) [E-Book] · Mika. 6 chapters [20,903 characters]. Hi... |
 | Rakuten Books https://books.rakuten.co.jp › ... Olivia Lasbos, the daughter of a baron, is a reincarnated person. She also possesses immense magical powers. After her father's death, Olivia becomes the second wife of the leading duke, and what awaits her is... |
 | Comic Seymour https://www.cmoa.jp › title A white marriage and geek life, where she's cherished by her adorable siblings and the rest of the Duke's family! The final boss daughter of the Duke's family creates and showcases movies and manga with magic, and even makes the finest alcohol. |
 | X · mikanarou 10+ likes · 6 months ago Mika @Let's Become a Novelist · @mikanarou · ncode.syosetu.com. The Fun Otaku Life of the Second Wife of the Head Duke (Serialized Version) [E-Book] ... The Duke's Family · 12:48 PM · Apr ... |
 | Mecha Comic https://mechacomic.jp › books After her father's death, Olivia becomes the second wife of the head duke, and finds herself faced with adorable twins. She's awaiting a white marriage, where she'll be cherished and loved by the duke family, including her adorable siblings. |