"Would you like a little sister?"
At midnight, you're walking alone down the street when you happen upon a girl in red holding a black umbrella. She asks you that question... How would you answer?
An unreliable urban legend has this to say:
1. Don't engage with her under any circumstances. Ignore her completely, or you'll be cursed with misfortune.
2. She'll kill anyone who dares to take this position, including the original little sister and you, the irresponsible one.
3. Only two kinds of people can learn about her past: the girl herself and the dead.
She's a bloodthirsty, deranged transformation cyborg, and she's now hunting down her "mentors" to settle the score...
The only one who gets caught up in the commotion by absentmindedly answering her is a gloomy girl who just finished her college entrance exams and wants to relax. She lost her right eye in a car accident, but her life had been fairly peaceful since then... until now.
Not only is she being hounded by a little sister who could kill her at any moment, she also has to help her capture even more terrifying fugitives!
With a pair like this, what fate awaits them...?
