is a Japanese light novel series written by Choco and illustrated by kaworu. It began serialization on the user-generated novel publishing website Shōsetsuka ni Narō in January 2019. It was later acquired by Fujimi Shobo who began publishing it under their Dragon Novels imprint in June 2020. A manga adaptation illustrated by Michiru Katō began serialization in ASCII Media Works' "seinen" manga magazine "Dengeki Maoh" in June 2020.
Premise.
An ordinary family that loves cats, the Tanaka family was on day killed in an earthquake. When, they woke up, they had reincarnated as the Stuart noble family in another world. Though they dressed in Western style, they have the memories of their previous Japanese lives. 
Characters.
Stuart Family.
Formerly the Tanaka family, they all woke up in their reincarnated bodies roughly at the same time. With their modern values setting them apart from the medieval kingdom they live in now, the Stuarts attempt to continue their former lives.
An Earl, whom cannot go against his stubborn wife.
 Matriarch of the Stuart family. She never had grandchildren as Mrs. Tanaka even with her children in their 30s; this makes her have an unhealthy obsession with forcing her kids to get hitched "just" for that. She couldn't care about the kids' happiness unless they were in danger.
Only daughter of the Stuart family, she was previously Minato Tanaka. Prince has crush on her, but she can't see it as he's just a child to her; she is instead smitten with the king.
Youngest son and formerly Heita Tanaka. 
Oldest son and formerly Wataru Tanaka. He kept the peace in the Tanaka family>
He is Leonard'a brother and the only memory of the Stuarts not to be reincarnated person.
A pet spider Emma had before regaining her memories. Violet is very smart and caring of her owner; webbing up enemies when needed.
Minato 's cat and leader of the litter. When she died of old age Komei wished to have 8 lives dedicated to the family, resulting in her litter being reborn as the size of horses in the new world. Emma can often interpret what Komei is trying to tell her by feeling. 
Imperial Japan.
A country in the other world that is heavily implied to have been founded by previous transmigrators from Japan. Their language is the same and so are names and culture. The Stuarts set up trade with the empire in exchange for rice, which they deeply miss eating.
Media.
Light novel.
Written by Choco, "The Tanaka Family Reincarnates" began serialization on the user-generated novel publishing website Shōsetsuka ni Narō on January 14, 2019. It was later acquired by Fujimi Shobo who began releasing it with illustrations by kaworu under their Dragon Novels light novel imprint on June 5, 2020. Seven volumes have been released as of December 2024. The series is licensed in English by J-Novel Club.
Manga.
A manga adaptation illustrated by Michiru Katō began serialization in ASCII Media Works' "seinen" manga magazine "Dengeki Maoh" on June 27, 2020. The manga's chapters have been collected into six "tankōbon" volumes as of January 2025.
Reception.
By December 2024, the series had over 600,000 copies in circulation.