Husband takes his wife, Yume, on a hot spring trip, but it's not an ordinary inn—it's "Netorare Hot Springs," a resort catering to those with cuckold fetishes. Unaware of its true nature, Yume finds herself surrounded by strange men. Caught off guard, she becomes confused and gradually unable to comprehend the situation. As her husband's hidden desires intersect with the advances of other men, how will Yume respond? The atmosphere of the hot springs entwines with rising tension in their relationships, promising the emergence of unexpected new dynamics.