My anatomy reference for Yaokins. Jacks are the right-hands of the Queens, and are supposed to act like their boydguard. So despite having a quite "feminine" appearance, Yao is really strong and fierce. You may also notice the lack of muscles, despite him being "strong". Physically, he is weak. He couldn't win an arm-wrestling match to save his life. But his swordsmanship is the best in his kingdom and he specializes in medicine and poison. So while he is too weak to win in hand-to-hand combat, his strategies in battles win him his victories. His sword is covered in poison. Touching it is fine, nothing will happen, but if it slashes through your skin, the poison gets into your blood stream and poisons you from within. He is also built more for speed rather than strength, and can slash five times in one second so thats a pretty brutal poisoning. He's the shortest in the cast at 5"0/153 cm.