TWO DEFINITIONS OF OLDEST AND YOUNGEST TBH... i will explain

oldest in terms of age: renshii. he's a dragon dude so he's old, but probably just above middle-aged for. yknow. a dragon dude. he's the twins' dad (if anyone remembers those old OCs of mineeee) but i dont have any RECENT DRAWINGS OF HIM RAAAGH

oldest in terms of time passing is quancher, who is at least a thousand years old. he... Became? a long time ago, he doesnt even really remember what dimension he's from

youngest in terms of age is corrie. they're 16

and youngest in terms of time passing is mini! he's only two. but he's a clone type thing so he's actually like somewhere in his mid 20s. realistic mini jumpscare GO