Yu Yu Hakusho

An ordinary girl is admitted to the most prestigious school in the country where she encounters F4, an exclusive group comprised of the four wealthiest and handsomest boys in the school - Dao Ming Si, Hua Ze Lei, Xi Men and Mei Zuo.

Alcohol, smoking, and stress—in the body subjected to these irritants, the cells responsible for maintaining life seem to fight a war that never ends. Due to a severe shortage of workers, Red Blood Cell AA2153 has to quickly learn to deliver oxygen and collect carbon dioxide, even in dangerous conditions. Meanwhile, White Blood Cell U-1196 has to do her part by dealing with germs and viruses during life-threatening situations. In the midst of these crises, they have to work together to keep the body healthy, despite not knowing if their sacrifices will be worthwhile. Cells at Work! Code Black takes a different approach by showing the grittier side of the jobs our cells perform.

After her mother took the blame for a tragic fire 13 years ago, Anzu plots revenge by working as a housekeeper under a pseudonym for her icy stepmother.