Ran Mouri is introduced as one of the main characters from the manga and anime series “Detective Conan.” She is the childhood friend of Shinichi Kudo and later becomes the love interest of the clever high school detective.
After the death of Ran’s mother, she lives with Kogoro Mouri. This situation raises questions among many as to why she lives with her father instead of her mother, who was a skilled lawyer.
1. Who is Ran Mouri’s father?
Ran Mouri is the daughter of the private detective Kogoro Mouri and lawyer Eri Mouri, whose real name is Kisaki. Just like the relationships between Ran and Shinichi, Kogoro and Eri met and got married when they were still young.
As a lawyer, Eri often participated in cases that Kogoro was assigned to. During this time, Kogoro often took on the persona of a detective with a rather bumbling image.

After Shinichi uses the alias Conan to hide his identity, he has to move into the detective agency of Kogoro Mouri. Since Conan cannot solve cases on his own, he has to rely on Kogoro to solve the mysteries while pretending to be a mere child. From then on, the detective has gained a new nickname “Sleeping Kogoro,” known throughout the country.
2. How is the relationship between Ran’s parents?
Although Kogoro and Eri are the parents of Ran, they no longer live together. The relationship between the two is not very good.

Every year before the story of “Detective Conan” begins, Kogoro and Eri decided to live separately, though they are not officially divorced. The reason for this action has not been revealed. However, it seems that both still have feelings for each other.
3. Why does Ran choose to live with her father instead of her mother?
Why does Ran choose to live with her father instead of Eri, even though her mother has the more suitable role as a guardian?
In reality, this is a decision made by the Japanese government. The Japanese Family Law states that children born to married couples are considered to belong to the husband. If the child is under 20 years old, the father must supervise the child. However, if the parents are divorced, custody could be a contentious issue.

Currently, the situation between Kogoro and Eri has not officially changed. If they were to actually separate, custody rights could potentially fall into Eri’s hands, as she is Ran’s biological mother.