The official website for the upcoming anime adaptation of Yusaku Sakaishi and illustrator Sakura Miwabe’s Rich Girl Caretaker (Saijo no Osewa) light novel series revealed a new key visual and two additional cast members.
The new cast members include:
- Saori Ōnishi as Mirei Tennōji
- Rio Tsuchiya as Narika Miyakojima
The main cast of the Rich Girl Caretaker anime series includes Yūto Uemura as Itsuki Tomonari and Konomi Kohara as Hinako Konohana. Shūsei Morishita directs the anime at studio Brain’s Base. Aya Yoshinaga oversees the series scripts, and Nao Kawashima designs the characters. Takeshi Takadera is the sound director, and Natsumi Tabuchi, Hanae Nakamura, and Mayo Kurihara are the music composers.
HJ Bunko published the first volume of Rich Girl Caretaker in May 2021, and the 11th volume released on October 31, 2025 in Japan. A manga adaptation was launched by Sorahiko Mizushima in Hobby Japan’s Fire Cross website in September 2021, and the fifth volume released on December 1, 2025.
Lastly, here’s a synopsis, via the novel’s Amazon listing:
A high school boy, Itsuki Tomonari, gets involved in a kidnapping and ends up taking care of Hinako Konohana, a young lady from one of Japan’s largest conglomerates.
On the surface, Hinako seems to be a brilliant and charming girl, but in reality, she is a lazy girl with no life skills. However, due to family reasons, Hinako has to play the role of the “perfect young lady” at school. Wanting to protect her, Itsuki takes care of her in a very caring manner. Eventually, Hinako begins to fawn on Itsuki with all her might… “Now…if Itsuki isn’t around, I would hate it.”
This is a love story that begins with a cute young lady with a gap that transcends the master-servant relationship.
