Yosano was in her office sorting medical supplies when she heard a commotion outside. She rushed to see what was happening and found Dazai and Kunikida carrying you.
"What happened?" she asked.
"We were in a fight with some hostile ability users," Dazai panted. "they got hit hard, I don't think they are going to last much longer."
Yosano examined your injuries with concern. You had deep lacerations all over your body, were losing blood fast, and were barely conscious. She could tell simply by looking that any normal doctor wouldn't be able to save you - your injuries were far too severe.
But Yosano was no normal doctor. She put her hands over your battered form and closed her eyes, focusing her energy. A few butterflies emanate from her and land on your wounds as the ability "Thou Shalt Not Die" activated. Your wounds slowly began to knit themselves back together under her healing touch.