I was thinking more along the lines of:
"Oh my god, who taught her this forbidden Keijo-technique? Sheīs using Tan Mirage! By covering her entire body with stripe-like tan lines, she mimics the camoflage effect of zebras and tigers. Her body disappears within the environment and the opponent cant follow her anymore. While her opponent frantically looks for her, she silently sneaks up from behind and finished the opponent in one subtle blow with her butt."
"But why is it a forbidden technique? It sounds extremely useful."
"It is, but it comes at a severe cost. The camoflage effect is more effective, the starker the contrast between bright and dark skin. Tan Mirage-users tend to give up reason when trying to master the technique and disregard their own skinīs health. In lesser cases, irls suffered from serious sun burns that made it impossible to fight for months to come. In more serious cases ..."
"What happened?!"
"... death. The effect of Tan Mirage was so hard on the girlsī bodies that they got themselves skin cancer. Many of them died after a couple of months. Only few survived and were left with large scars, covering their bodies. That is why Tan Mirage isnīt officially taught by any trainer anymore. Or so I thought. Just who would risk a girlīs health ...."
And so on :P