The main character, college student: Tsubaki lost her parents when she was young
Younger brother: I live in an apartment with Wajin.
There are days when I am attacked by the badness of the city due to past causes.
She has a strong skill and has always been overwhelmed.
One day, when the university is approaching summer vacation and comes home from a part-time job to earn living expenses
There is no younger brother who should have returned earlier.
She is confused and is informed that she has abducted her younger brother from a bad top.
Can she defeat the bad guys and rescue her younger brother?
Will it be defeated and fall into a sex slave?