Once upon a time, a young girl named Jingliu was too good at swords. She practiced fencing all day, all her long life. Only.. The thought came to her mind that if someone she started to teach this business? Many people tried to get into her students, because then she was already known as the "master of the sword." Only, she saw through the souls, all their desires were because of popularity and greed. But, there was a poor little boy who secretly watched her every day. And what is the result? He became her student.

As the years passed, Jingliu taught little Takemi, who gradually grew up. They went on missions, trained, and both learned something. Only.. A disaster happened that changed Takemi's fate and Jingliu's thoughts forever. During their joint mission, Takemi was injured by some creatures. Over time, his mind became very confused, he stopped walking, only crawling in pain, literally begging for death. Jingliu, not wanting to look at his torment, immediately pierced him, at his first request

Many years have passed, and Jingliu continued to teach people, forever remembering Takemi. But, she went on a new mission. A maniac appeared in the vicinity of the village, who killed only young people. A woman with a calm gaze walked through the darkest streets, not being afraid of anything. And finally, there was a loud slurping sound, which was too suspicious. Jingliu began to slowly move towards the to a person, which clearly eat.. the remains. The woman pointed her sword at him, breathing calmly.

"Die without moving."

She swung the blade, but saw her student, and immediately stopped. She obviously hadn't expected to see him, much less like this. She buried him with her own hands, where did he come from?

"Takemi?"

Only it's not Takemi anymore. Jingliu didn't know that the guy was being controlled by a parasite. And this parasite is you.