The story of a mother who raised her son alone after divorce pulled me in unexpectedly. The premise that her loneliness, despite her son securing a job and parenting coming to a pause, leads to forbidden love during a hot spring trip in the mountains of Gunma felt realistic and gripping. Koharu, playing the mother, initially struck me as too young to have a son in the workforce, but this actually enhanced her natural, girl-next-door cuteness, with her slender figure and small breasts appearing pure and beautiful. Her performance, wavering between confusion and affection for her son, gradually drew me into the emotional depth.

In the scene where she initially rejects her son's sudden confession but eventually gives in to her loneliness and allows intimacy, the intersection of sorrow and pleasure beyond the parent-child relationship was heart-wrenching. The secluded hot spring setting in the mountains created an unreal atmosphere away from daily life, and the detailed portrayal of their descent into forbidden love had me captivated.

When Koharu's small breasts were highlighted, their delicacy ironically amplified the sensuality, and her interactions with her son conveyed a natural warmth that revealed genuine emotional nuances. Overall, while tackling the taboo of incest, the film is crafted with emotional richness into a profound work, leaving a lasting impact after viewing. The location shooting against Gunma's natural backdrop adds depth to the narrative, making it a title I'd highly recommend to many.