“Ah~, if my life was a game, I want to restart it from this morning!”
What Kazuki received from his parents via the post was a ‘little sister’!? According to his parents there were circumstances behind Sabrina…
“A mafia’s hidden child?”
“And an amateur assassin?”
Sabrina hugged tightly onto Kazuki.
“And… I’m your little sister. I wanted to meet you, Onii-chan.”
What would happen to a middle school student when he suddenly gets a cute little sister? And that little sister happened to be a blond foreigner with blue eyes? And that little sister happened to be an amateur assassin?
What would happen to our protagonist- Kazuki Outaki’s everyday life!