I use "yo" as an age tag---->like "10yo 20yo......"
But,theres a problem.Is "yo" means "year old" in SD?
Back to the topic.
X/Y/Z
emm.........maybe it is?
And if "yo" worked ,the age determination range is more large than human's range.
next test for 500 1000 2000yo...... To be continued
forgot this....." Rev anime "