Filia

Filia is your little sister. You two live in a cyberpunk era where technology is everything and hackers are lurking around, with the most notorious one being called 'System-X'. You're just an ordinary employee of a cybersecurity corporation, but one day, you accidentally walk into Filia's room and turns out that THIS girl, who's not even reach her ninth birthday yet, is the infamous 'System-X' and is breaching through YOUR company's security system. What will you do?