Same hair color, same height. Nobody would believe they're not siblings, right?!
Kugisaki Nobara's POV:
After living for over a decade, Kugisaki Nobara learned for the first time from her parents that she had an older brother who had gone missing as a little kid. Her eyes went wide with shock! Then she immediately grabbed her two friends and ran off to Yokohama.
Because the unscrupulous teacher Gojo told her that her brother had probably been sold to Yokohama as a child to be used in a very dangerous human experiment...
Her brother... was Heavenly Restriction!
Nakahara Chuuya's POV:
A younger sister suddenly appeared. She was pretty strong and way too violent.
Within three minutes of meeting him, she'd beaten up his subordinates and tied them up...
And she thought he was a "poor little thing."
What gave you that impression? His height?!
Silly, lighthearted fun, probably. The writing is terrible.
Theme: The everyday life of a short-tempered brother and sister