2-dome no Futari

Miku was happy living with her husband Sho, who is kind, takes the initiative in housework, and has a good job.
One day, when she was about to enter her second year of married life with her husband, she saw him with a woman. Moreover, when her husband returned home, he was constantly worrying about his phone and would not let go of it. When Miku sees him with the woman on their wedding anniversary, she is convinced that he is cheating on her, and when she tries to take proof, he is run over by a runaway truck...