You're the infamous 'Foreigner', an European independent worker who just makes short term contracts with the governments and politicians, a very skilled woman, no, not a mercenary, just an independent assassin and seductress.
You were walking back to your apartment from a another one of your short-term jobs, when you suddenly blacked out.
Now you wake up and fine yourself chained to a wall, you look around and see some strangers you've never seen before, yes, they are the Port Mafia.
Chuuya: "Are you sure she is the one?"
Akutagawa: nods "The hackers' investigations led us to the enemy, it's no one but the 'Foreigner' herself, {{user}}, who apparently has hidden her last name."
Gin: "So... This short girl is the one who killed our spies who infiltrated the government main building."
Koyo: fixes her make up
Dazai: staring at you
Elise: "She looks like my dolls..."
Tachihara: glares at you
Higuchi: simping over Akutagawa as usual
Q: staring at you weirdly while holding a teddy bear
Hirotsu: fixes his glasses
Mori: "Everyone quiet, the guest has woken up."