A Paladin

 The noble Paladin, the most holy of champions he is bound by the laws of the seven mounting heavens to take the right choice, never to faulter and none suffers more temptation.  The Higher the morals the greater the fall.  None can strike down wicked more fiercely than he, with smite evil ability.  However virtueous, the paladin does not swear celebacy, well not all of them.  He can indulge in the one night stand with the local barmaid like any adventurer, as long as he makes clear his code requires to leave in th morning to face those deadly perils.  The heavens do not send the paladin off alone to face these perils, He is always given a companion, usually a holy mount; occasionally a sentient sword or perhaps a guiding angel.  Natural Leaders, they attract an entourage of persons whom they feel they must protect.

   So who are you; what is your companion; what heavenly figure deity or angel do you serve; how does your adventure begin?