Joe Odagiri and Masami Nagasawa have been cast in co-starring roles on a TBS drama series next season. Tentatively titled "Boku no Imouto," the drama is based on an original script by writer Shunsaku Ikehata.

Odagiri plays an elite surgeon, while Nagasawa plays his younger sister. Unlike her brother, Nagasawa's character is poor in academics to the point of being called "miraculously stupid," but her strengths lie in her good nature and power of living. However, she also has a bad eye for men, and in the first episode she is discovered to be having an affair with a married man, leading to a big fight between the two siblings. But because they lost their parents when they were young, they grew up with a strong bond despite their constant conflicts.

"Boku no Imouto" will air on Sundays at 9:00pm, starting in April.