NSFS-139 The dutiful wife was cheated on by her husband's colleague

Kanna Abe's husband is having difficulty at work, he was even demoted. But he hides these truths from his wife. Yoshimura, a colleague of the husband, became aware of this whole situation and concluded that he could benefit from his disgrace. He then approached Kanna and updated her about the whole incident, asking her to help the husband in exchange for sex.