A single dad and a little girl learn the magic of cooking to bring families together in this manga that inspired a hit anime. Ages 13 and up. You Can't Make an Omelet. The older Tsumugi gets, the stronger her personality and preferences become. As a responsible single dad, Kôhei always does his best to keep up, but sometimes desperate measures are necessary--like the classic Japanese comfort food, a rice omelet. Later, Kotori's on the brink of making a big decision, and she won't be the only one affected by it. But no matter how things turn out, with Kôhei and Tsumugi in her life, good food and good company are never far away.