Camouflage Marriage

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)