Oh...I remember there has a interesting thing ...time.
UH's concept of time is also usually 24 hours a day, and the average life of each angel or demon is almost a few hundred years...But in fact, if you look at the characters of UH from the "human perspective", their age is"same" with the characters of UT.
Assuming UT's frisk is 10...15...or even adult, it is fine, then UH's frisk may be 100 ...150 ...180 years old, like this...Well, actually I am still thinking about age and time :(
(Of course, for an angel who can live for hundreds of years, a hundred years old is really just the age of a child...same as demon.)













