Nada Sōsō was nominated for Best Actor (Satoshi Tsumabuki) and Best Actress (Masami Nagasawa) for the 2007 Japanese Academy Awards.

"[3] Film critic Victor Chan commends the film, saying, "Nada Sou Sou boasts of all-round great acting by its cast, and its simple but homely style neatly complements the strong rural Okinawan setting, making this movie a classic triple hanky tearjerker which should appeal to not just the young Japanese movie fan, but also older audiences who have been starved for good tearjerkers.

"[4] Calvin McMillin, reviewing for LoveHKFilm, criticises the relationship between Tsumabuki and Nagasawa, saying they "do a serviceable job as would-be lovers, but both performances are somewhat problematic in execution.

He criticises Nagasawa's acting by stating "[she] is so over-exuberant (perhaps intentionally so) in the initial parts of the film that she's more of a grating presence than an endearing one.

He also underlines the film's main downfall in trying to "adhere to the "Pure Love" aesthetic [that] the filmmakers completely gloss over the complications that could arise from a blossoming romantic relationship between these step-siblings by purposely avoiding the issue at any cost.