Kojima Sumire

Kiyo Hori (age 29) married Mitsuhiro Yoshida in four months after a serious heartbreak with Yasutaka Mizuki, a married man who was her senior at work. Mitsuhiro is a divorcee. The divorce was caused by infidelity on the part of his ex-wife, Reina. She married Mitsuhiro, who paid monthly child-support payments to his 3-year-old who lived apart from them.... Kiyo, though, found her marriage to Mitsuhiro to be better than she had imagined. Mitsuhiro's passionate courtship led to marriage, which led to a comfortable life and perfect physical chemistry between the two. If only it weren't for the frequent interference from Reina, who uses her and Mistuhiro's child as a pretext to disturb the peace......! How many more intrusive phone calls to her husband can Kiyo take before she confronts the situation?!?! (Source: MangaPlaza)

Why can't you have sex with someone you love enough to marry? I quit my job, became a housewife for half a year, went half a year without sex... Haruna Mizuki (34 years old) is in her second year of marriage. She quit her job and followed her husband, Yasutaka, on his job transfer for about half a year. And half a year without sex... Although she understands that her husband's job is busy, she feels like a "sex monster" herself because she can't help but want it. Hoping to avoid sexlessness, she anticipates something on the night of her 35th birthday, but Yasutaka is always absorbed in his smartphone... (Source: Bunkasha, translated)

Shiori's dad remarries and she couldn't be happier. Not only has she gained a new mom, but a hot, older, yet sadistic stepbrother as well?!