Translation Source: https://twitter.com/TheParacite/status/1561328855297585153

For those who don’t get it and use burger units, 20kg is 44 pounds. In other words, she is massively under weight. She should be double if not closer to triple her weight.

I added it to HITEP because like... a skeleton alone weighs about half of that. I'm pretty sure it's literally impossible for an adult human of regular height to be that light.

For comparison, this BBC article about a teenage boy who starved to death mentions that the autopsy gave a final BMI of 13.6, which was pointed out as being the lowest BMI the dietician expert on the case had ever seen in her entire career.

20kg at 156cm would be a BMI of 8.2.

Varum said:

For those who don’t get it and use burger units, 20kg is 44 pounds. In other words, she is massively under weight. She should be double if not closer to triple her weight.

She just forgot to fully disable her antigravity before getting on the scale, that's all...

was about to say she's a succubus and leave it at that, but the other merlin seems to be normal at 178cm, 68kg

So, while doing some unrelated research on circus sideshows, I would up finding evidence of a real person who was close to the height and weight here (12cm taller and half a kg lighter). So I guess the numbers shown here aren't literally impossible, it just... looks like this.