“Ha-Chan, Shake Your Booty!” is a Japanese drama exploring grief and healing through the lens of ballroom dancing. Directed by Josef Kubota Wladyka and co-written by Wladyka and Nicholas Huynh, the film centers on Haru, portrayed by Rinko Kikuchi, a competitive ballroom dancer navigating loss after the sudden death of her husband, Luis (Alejandro Edda).

Set in Tokyo, the story follows Haru as she struggles to come to terms with her grief. Initially inconsolable, she is urged by her cousin Hiromi (You) and sister Yuki (Yon Yoshida) to return to the dance studio where she and Luis once trained. There, Haru meets Fedir (Alberto Guerra), a charismatic tattooed dance instructor in an open marriage. Drawn to his presence, Haru finds herself caught between the pull of the past and the possibilities that Fedir represents. The film delves into Haru’s complex emotional state, often using imaginative sequences to externalize her inner turmoil.

Kikuchi’s performance has been widely noted as a highlight, effectively conveying the nuances of a woman caught between love, loss, and longing. The chemistry between Kikuchi and Guerra develops gradually, contributing to the film’s emotional core. Notably, the filmmakers frequently use wide shots during dance sequences, allowing audiences to appreciate the technical artistry of the ballroom performances without excessive editing. One ensemble dance number evokes the style of classic musicals, adding a vibrant contrast to the film’s more introspective moments.

While the film addresses themes familiar to dance narratives — romance, desire, self-discovery — its primary focus remains on grief and the process of moving forward. However, critics have pointed to tonal inconsistencies that complicate the story’s impact. Haru's characterization oscillates between serious and whimsical, leaving viewers uncertain whether the film aims for a profound exploration of mourning or favors a lighter, more theatrical approach. Some supporting characters, such as Haru’s cousin and sister, are perceived as underdeveloped, limiting the clarity of their relationships and their influence on Haru’s journey.

Additionally, the screenplay has been described as uneven, with certain fantasy sequences and dialogue elements feeling extraneous or clumsy. These moments occasionally disrupt the narrative flow and dilute the emotional intensity. Still, the film succeeds in its portrayal of dance as both an artistic and emotional outlet, offering a layered look at how movement can reflect and affect inner experience.

“Ha-Chan, Shake Your Booty!” combines strong performances with compelling dance sequences to explore the complexities of loss and renewal, even as its structural unevenness tempers its overall effect.