Starts with a female sim, Kiera who is a doctor. She really wants to focus on her career and her dream is to get all the way to the top. However, she starts a relationship with her colleague, and he eventually moves in with her. She thought the fact that they're working together wouldn't get in their way, but it did, since he couldn't handle the fact that she exceeded him at work with promotion after promotion. They tried to patch it up and decided that getting engaged would solve everything. All seemed well, but the same night as their engagement, her fiancé thought he'd make them a nice dinner to celebrate, and ended up starting a fire where he died. Kiera mourned for a long time and buried herself in work but after delivering her first baby, her own biological clock started ticking and when she meets a new neighbor, a shy, single prospective programmer called Akihito, she allows herself to fall in love again. Things progress a little faster than expected as Kiera finds she is expecting only a few days into the relationship! Her new boyfriend takes responsibility and moves in, working hard to move up in his career to take care of his new family. Double the happiness when Kiera gives birth to twin girls! The days become hectic for the couple, but they are blooming, doting on their two girls and daddy Akihito is doing really well as a programmer. The girls grow but over the years, kids, work and daily life stress takes its toll on Kiera and Akihito's relationship. In an attempt to reignite their passion, remembering those early days when the girls were little and their relationship was good, they decide to try for another baby and to Akihito's joy, it's a boy. Kiera, however, develops postpartum depression and isn't really able to bond with her son, so the boy is mostly cared for by his father and teen sisters, who adore him. Kiera's work suddenly becomes more challenging and she realises that the spark is gone and once again, her solution is to bury herself in work. What she doesn't know is that Akihito has been working up the courage to propose, but he is discouraged by Kiera's cold attitude. He seeks validation from social media and has an affair. One becomes two and after the third affair, Kiera finds out about it and shut goes down. Everyone are miserable and their son starts having nightmares and waking everyone up in the middle of the night because he thinks there is a monster under his bed. Akihito's affair is about to ruin their family, and it doesn't help when Kiera loses her job over a mishap at work. She starts spending her days shopping and suddenly their daughter Kanae announces her engagement to her boyfriend of 3 years. Finally, the focus shifts, and they all have to pull together to make Kanae's wedding perfect. This means a family intervention because Kiera being laid off means their income is more than halved and so is their savings, due to Kiera's spending sprees. When Kiera sees how hard Akihito works to pay for his daughter's dream wedding, Kiera starts remembering why she fell for him and they finally make up. Days before their daughter's wedding, Akihito reveals a big engagement ring and proposes to Kiera, who accepts. A last minute double wedding is due, and everyone are happy. Not long after, Kiera and Akihito become grandparents. Their other daughter becomes a rock legend and their son stays at home to take care of his parents as they grow old. Finally, their son marries and even though there are some turbulence between Kiera and his son's wife, they live happily together.
