Esferas is an animated concept channeling a difficult emotional situation such as cancer into a simple story. This is a story of the common struggle between good and evil, this time at a cellular level, enriched with visual effects and careful sound treatment. The ads ending conveys that only one side can win, and that is by outnumbering the other. This story's approach, aimed at creating awareness on new segments, posts a last question: Who is to win this battle? The answer is up to donators to decide.