This Thai commercial by the Thai National Cancer Institute had broken the internet. It starts off with two sisters always getting in each others away, bullying each other as they grow up.
As they grew older and their parents passed away, the younger sister began treating the house and her older sister very badly, stealing her money to go partying and never cleaning up after herself.
When the older sister confronted her about it, they had an argument and she wished her young sister would die to save her from the trouble she causes.
Little did she know, part of her wish came true, except it was her who was diagnosed with a cancer. The story illustrates her coping with cancer and her younger sister finding out about it, which re-ignites their relationship.