TT

For years, the wealthy Tanaka and Kiyoko have been known as the perfect power couple. Their luxurious estate, successful businesses, and picture-perfect family make them the envy of everyone around them. But behind closed doors, balancing demanding careers while raising two energetic children has become nearly impossible. Desperate for someone they can truly trust, they hire Yachi Hitoka, a shy university student with a natural gift for caring for children. Though she lacks confidence, Yachi quickly wins over the kids with her kindness, creativity, and endless patience. What begins as a simple babysitting job slowly turns into something much deeper. Yachi becomes a comforting presence in the household, helping the children through their fears, bringing warmth back into the mansion, and reminding Kiyoko and Tanaka what family truly means. However, their peaceful routine doesn't last forever. A rival corporation begins targeting the Tanaka family's business, anonymous threats arrive at the estate, and someone appears to be watching the house. As danger draws closer, Yachi finds herself protecting the children she has grown to love while standing beside Kiyoko and Tanaka through every challenge. Together, the three must decide how far they're willing to go to keep their family safe—and whether the bond they've formed has become something far more permanent than any of them expected.