On a midsummer day, Ririka learns that the apartment of Nishijima, her husband's subordinate, has flooded, leaving him unable to take a shower and in distress. Out of concern, she decides to let him stay at her place until the repairs are complete. Nishijima has always admired Ririka, and this opportunity deepens his feelings as he finds himself captivated by her presence. As they spend more time together, his emotions grow increasingly turbulent. Sweat drips from Ririka's body, emitting a sensual fragrance that stirs Nishijima's desire, intensifying day by day.