My Sister's Boyfriend Shares Film Clip of Sui and Midori Saving a Dog
The adaptation of Amu Meguro's manga opens in Japanese theaters on December 4, with timelesz performing the theme song.
A new clip from My Sister's Boyfriend shows Sui and Midori rescuing an abandoned dog she finds on her way home from school.
The official website for My Sister's Boyfriend released a new clip on Monday. The live-action film adapts Amu Meguro's Midori Loves My Sister (Onē-chan no Midori-kun).
The scene follows Sui and Midori as they help an abandoned dog Sui discovers while walking home from school.
The film opens in Japan on December 4. Its English title is My Sister's Boyfriend.
The cast includes:
- Masaki Hashimoto, a member of idol group timelesz, as Midori Yukishiro. His credits include the live-action Summer Complicity.
- Runa Nakajima as Sui Sanae. Her credits include the live-action Uchi no Otōto-domo ga Sumimasen.
- Rinka Kumada as Momo Sanae, Sui's older sister and Midori's girlfriend. Her live-action credits include Otonanajimi, Kimi ni Todoke, and It Takes More than a Pretty Face to Fall in Love.
- Reo Matsumoto as Ayame Mizukawa, Sui's childhood friend. His live-action credits include I Cannot Reach You and Propaganda Game.
- Taisuke Niihara as Amamiya, a new assistant producer at the TV station where Momo works. His live-action credits include At 25:00 in Akasaka and Young & Fine.
Mahito Kimura directs the film. His credits include the live-action Strobe Edge and Blue Spring Ride series. Nami Kikkawa, whose credits include the live-action Honey Lemon Soda film, wrote the script.
Shochiku handles planning, oversees production, and distributes the film. timelesz performs the theme song, “Hontō no Koto o Iu to” (“If I Tell the Truth”).
The manga follows Sui, a third-year junior high student who struggles to get along with her older sister's boyfriend, Midori-kun. He teases her and treats her like a child.
When Midori becomes her home tutor, Sui discovers an unexpected side of him. The manga's Japanese title literally means “My sister's Midori-kun.”
Meguro launched the series in Shueisha's Bessatsu Margaret magazine in 2022. Shueisha published its 11th compiled volume on April 23.
Meguro's earlier manga Hinata no Blue began in Bessatsu Margaret in April 2019 and ended in July 2021.
Her Honey So Sweet ran in the same magazine from August 2012 to November 2015. Viz Media's Shojo Beat imprint released all eight volumes in English.
Honey So Sweet ranked among Japanese Bookstore Employees' top recommended comics for 2014. Its live-action film adaptation opened in Japan in March 2018.
The film's official X/Twitter account supplied the promotional image. Its copyright credits read: ©2026「お姉ちゃんの翠くん」製作委員会 ©目黒あむ／集英社
Sources: Onē-chan no Midori-kun live-action film's website via ANN
