The Invincible Little Lady (どうやら私の身体は完全無敵のようですね, Douyara Watashi no Karada wa Kanzen Muteki no You Desu ne) is a Fantasy/Isekai Light Novel written by Chatsufusa and illustrated by fuumi. It was first published in the Shousetsuka ni Narou website as a Web Serial Novel in 2016. It was then acquired by Micro Magazine's GC Novels label and published as a Light Novel in August 30, 2017, with six volumes published as of now. A Manga adaptation illustrated by Sabaneko was released by Kadokawa in February 2, 2018 under the Dra Dra Flat magazine. J-Novel Club has licensed both Light Novel and Manga in December 21, 2022 and November 29, 2023, respectively.
In our world, a young girl says goodbye to her parents as she dies due to an illness. Her last wish was to be reborn with a body that would never be affected by afflictions of any kind. Then, a mysterious voice tells her: "Your wish will be granted.". And she then finds out that she has reincarnated as Mary Regalia, the baby daughter of a prominent ducal family, retaining her memories in the process. She was at first amazed after her reincarnation, it was a second chance to have a new family and a new life. She then sweared off any attempt to go on adventures and all of that stuff that many should do in these stories.
Until she discovers at the tender age of three that she has incredible strength, durability, resistance, magical power, and immunity to any and all diseases. She didn't want any of that, and soon she will struggle with living as slowly and comfortably as possible, even though she's practically invincible.
Provides examples of:
- Does Not Known Her Own Strength: Mary had problems to control her immense strength, even at seven years old, she was breaking tea cups by their handle with minimal effort, requiring Tutte's assistance with such delicate things like dressing up, so to not rip any of her dresses.
- Gone Horribly Right: Mary in her past life wishes to have a healthy body prior to her death. She gets her wish when she grants rather inhuman strength that it is an annoyance in her daily life and has to hide it in front of others sans Tutte.
- I Just Want to Be Normal: Mary wished to be as normal as possible, but without having to worry about a weak body. So the God of the new world obliged her request. And now she has to be Willfully Weak so that she doesn't attract unwanted attention.
- Invincible Heroine: Right in the title. At only three years old, Mary was capable of lifting a huge box without any struggle, and it only escalates from there.
- Secret-Keeper: Tutte, Mary's personal maid, is the only one Mary has told that she has reincarnated after Mary saved her from a falling box.
