Uehara Hibiki

Aiko worked hard to get a job at a good company, but in her first year, she meets Seiichi and ends up marrying him. Acceding to his wishes, she quits her job and becomes a housewife. At first, everything is smooth sailing. She enjoys her role supporting the man she loves as he aims for success... But before they've even been married a year, Aiko discovers that Seiichi is having an affair. It starts with small things, like coming home late, but it continues to get more and more flagrant. In spite of what she knows, Aiko still holds out a tiny hope for the husband that she loves, and resolves to continue with this imperfect but tranquil lifestyle. That is, until she discovers an even more shocking truth...! (Source: MangaPlaza) Original Webtoon

Rie's boyfriend was handsome and skillful, and everyone in her office adored him! Moreover, they hid their relationship from everyone, so every day was thrilling. One day, her boyfriend told her that he had something important to discuss, and Rie thought that he was going to propose to her, but... her heart was broken instead. Her boyfriend told her that he was getting married to a woman who had conceived his child and asked her to break up with him. Then, Rie's manager brought up the idea of a blind date to Rie who had been suffering alone. The man she would meet up with was Yuichi Kuroki, Yasushi's only rival. Kuroki, who was highly regarded in the office for his appearance and skills, said to Rie, "I've decided on you." Rie, who was not able to read Kuroki's feelings, thought that the whole blind date had been arranged beforehand, but...?