My friend's wife secretly seduces me, stealing my husband's eyes

An architect Keisuke is asked by a friend to renovate the house at a low price, but because it was such an unreasonable request, he visits the other person's house to refuse... He is captivated by the dedicated request from his friend's wife, Aya, who was introduced there, and accepts it. The hidden relationship between the two suddenly begins gradually becomes more lewd and bolder as they progressively progressively. And finally, Keisuke has finished his renovation and has no chance to meet Aya...