Haitoku no Kyousei Tanetsuke

One day during his college years, Yuuto helped a lost and beautiful woman in town with genuine kindness. That woman, Kotoko Houshou, was instantly drawn to him—and her heartfelt affection soon led them to marriage. But their union marked the beginning of a difficult chapter. Kotoko was actually the only daughter of the prestigious Houshou family, known for its success across numerous major industries. She had originally been promised to an elite suitor chosen by her parents from a top-tier corporation.