In this installment, prim teacher Sayaka enters the classroom determined to uphold her professional image, only to feel an overwhelming warmth that no amount of cooling can ease. Across town, elite swimmer Misuzu plunges into the chilly practice pool, where the brisk water instead fuels a rising heat that turns her routine into something far more intense. As each woman confronts these unexpected sensations amid their daily responsibilities, the episode builds a sultry tension that heightens with every passing moment.