A work depicting the shocking sibling love, drawing viewers into a forbidden world. The beauty of the older sister, Sumire, intertwines with the excessive affection of the younger sister, Minami Riona, creating a stage of lust on the sofa that captivates the audience. In particular, the desire to drink Sumire's enchanting urine stirs an even deeper urge, providing a visually satisfying experience filled with enticing scenes. However, the size of the mosaic is disappointing enough to make one want to strongly protest to the staff. Nonetheless, the exclusion of SM elements highlights the impressive challenge of this new genre within lesbianism involving urination. The conflict and pleasure of the two awakening to their forbidden desires offer an unforgettable visual experience.