Old Li Shuwen, from the game Fate/Grand Order, as well as the manga Fate/Koha Ace.
Recommended weight is around 0.8 to 1.
Less that 0.8 will make this old man look young again, but with white hair.
You can use keywords :
"red chinese clothes" for 1st ascension clothing
"grey uniform" for a 2nd ascension
"fur trim" for 3rd ascension