Hikaru has fallen into an extreme distrust of men due to past trauma. However, she decides to marry Yosuke, her boss at her company, who understands her situation. Even though Hikaru loves Yosuke, she still has resistance towards him when it comes to her nightly activities. Yosuke's stepchild, Tsubasa, notices Hikaru and plans a plan to train her to have beautiful breasts. I'll heal your trauma.