As know like: Crazy or Brave Sheng is a soldier of avian/reptilian alien rase call: Dragonus which is mistaken for dragons by other races.
Star Trek is one of the last dragonus warriors what primary use melee weapon in combat. But his sword is different from other melee weapons: Named after dragonus goddness of war, Nignasia, have blade make of firmilium alloy. This material is very strong, light and resistant to high temperatures bud also extremy rare.
As a person: Star terk is dedicated to traditions of his people, patient and can be very gently. In the other hand as warrior he never get a chance to enemies. Thanks for his training and the transfer of ritual "Zana wen geg spiri" he got unhuman agility, strength and reflexes.