Totsuzen (гет)

"As a matter of fact, the red blood cells - like him - and the white blood cells - like her - weren't so different from each other. They were different because of their physical appearance and their respective jobs; they could be different because of their personality, but they certainly had never been different because of their experience, their emotions and feelings while facing certain events."
Sometimes it takes very little to realize that, despite the differences, deep down some cells are similar.
[Post! Chapter 39 of Cells at Work! BLACK] [Missing moment, What if?]