Mom Surprises Barista With News That Her Sister Is Cancer-Free In Touching Clip

But as we can see here, it was a suspicious one to her because the customer was her mother, who seemingly saw fit to record her just to order a latte.

And soon enough, her suspicions would be confirmed.

As Mejia explained to Good Morning America, Megan had acute lymphoblastic leukemia and is preparing to undergo a bone marrow transplant as a result of the disease's effects.

So she was understandably stunned to learn that her sister's cancer was gone and repeatedly asked "really?" and "are you serious?" when her mom surprised her with this news.

And as it started to become clear that what her mom was saying is true, both of them started crying. The mom then revealed that Megan hadn't even received this news yet.

Mejia then pressed her mom to record Megan's reaction and said she'd be so excited, to which her mom replied that she might not care because she never treated her cancer as a big deal.

Still, she told Good Morning America that she could tell the process of treatment was weighing on her because it left the normally extroverted teen too drained to go out anymore.

As she put it, "Because she is such a social person, to see her just completely change was definitely the hardest part."

But while we can see that this video captured a cathartic moment after six months of hardship for the family, its ending also gave us a hint of where Megan got her sense of humor from.

h/t: Good Morning America