[Broad statement about the nature of life, the universe and everything. Statement has to be decidedly vague and meaningless so as to emulate one's inner teenage angst]
[Introduction of character doing mundane things (i.e. reading, walking, thinking, casting fireballs because he's a level 3 mage). After that, a lengthy exposition detailing either
a. His/her previous life (and hopefully how it cut short)
b. How terrible his/(in rare occasions)her life is currently despite being relatively well off
c. Any other form of a tragic Batman-esque backstory
After which, a detailed description of the system is necessary, whether it be a system based on magic, magic, martial arts imbued with magic, or sorcery. It is at this point where a text of suitable length (1000-1500, designed so that a reader may just skim over it, or ignore any errors in the writing)]