This impactful work, featuring Sumire Kuramoto's endearing and lovely performance, depicts the secret relationship between siblings. The daily routine of bathing together since childhood escalates into mutual body washing, with changes triggered by the brother's job transition portrayed in a poignant and sensual manner. Particularly, the scene where Sumire, drenched from heavy rain, is played with in the bath highlights the allure of wet skin, making it visually irresistible. However, it's a pity that despite the title 'Bathing Together,' the bath scenes are relatively scarce; a more thorough focus on the bathroom setting, such as having the final intimate moment there, could have deepened the narrative. Story-wise, delving more into how their relationship developed would have added emotional richness. Overall, with Kuramoto's consistent cuteness and acting skills, this piece effectively conveys the complexity of sibling love, making it a memorable watch.