cast no aspersions, I am chaste
my only lover binds my waist
its steel-boned leather kept strait-laced
so lithe, so feminine
my sweetheart hugs me without slack
supports my aching broken back
a saviour – no torture rack!
I stand upright within
to see myself in its embrace
a woman of such slender grace
o racing heart! o blushing face!
my thoughts are in a spin
Francis James Franklin (Alina Meridon) 
I like the blend of cruelty and tenderness
I was thinking her back is damaged from an unrelated injury and the corset gives her the strength to stand again. But, to think of it as the corset causing the damage, as indeed poor designs can and often have, then it is a cruel self-affliction.