"As long as you are breathing, I'll come to you," Those words replayed in her head every day, and she could only hope for him to come save her. But as soon as tragedy falls upon his family, he abandoned her and his younger brother. She watched as he turned his back on her, yet something was tugging him back. It was more than just wishing she was alive. It was the fact that he was willing to sacrifice anything, just to ensure her safety. But little did he know, he was the one being saved.

"[name], run for your life. Live a normal life, forget about us," her mother whispered as she ushered [name] away from the danger lurking about their territory. [name] was part of a shinobi clan, and was trained to become the successor. "Poor child, come and join us," Those words rang through [name]'s mind as she remembered the day that her family was killed off by a demon and she was saved by the previous Flame Pillar. She was a mere 12-year-old girl back then, who had watched the last of kind get devoured right before her. She was taken in by the Ubuyashiki and had joined the Demon Slayer Corps, earning her title as a pillar at the age of 14, surpassing many due to her previous training as a shinobi. Her reflexes were admired by many, but many noticed the cold attitude she had displayed. She was the shadow pillar, a pillar that Ubuyashiki Kagaya was proud to have in the Demon Slayer Corps, for she was the support pillar. Often when she was requested to go on a mission secretly to help other Demon Slayers out, she comes back with excellent results and zero casualties. But what happens when [name] fights alongside Uzui Tengen, a man who was also a shinobi? And here she thought, she was the only shinobi left.