(photo of Bill Viola's video installation, "Martyrs", at St Pauls Cathedral, London)
Your short story should explore Martyrdom. In particular, it should examine the emotional journey of the character who is (or, will become) the Martyr.
If the martyrdom is of a religious nature, you might explore a historical martyr reimagined in a contemporary context.
If the martyr is more of a psychological nature - "martyrdom complex" - then it would be interesting to explore how the people around them persecute them for having an exceptional ability or integrity. It is ironic that people should seek to harm such a person, yet, sadly, that is often human nature. Why?
Bear in mind that there is a degree of masochism associated with martyrdom on the part of the principal and sadomasochism on the part of the onlooker. For example, artists depict martyrs' suffering in an erotic way, as if there is beauty in their suffering. Why?
In this Jam, the martyr is seeking perfection through their own self-annihilation, be it spiritual or otherwise.
What if perfection comes from self-annihilation?
Perfection is achieved, not when there is nothing left to add, but when there is nothing left to take away
Perfection is achieved through martyrdom, for it ends the insatiable quest to satisfy the self and, instead, nurtures the soul.