"So..you want to be one of us, huh?" That's what Helen said beside you in the pub.
To backtrack, she stumbled upon you defending yourself from a mugging on some random evening in the middle of the London street. You could've just released a flurry of weak punches in hopes to keep your belongings, but your defense seemed calculated. You managed to dodge the knife attacks, the punches, and the flimsy attempts at trying to steal your backpack (which didn't have much in it anyway). As a result, it left the unlucky mugger groaning and bleeding on the sidewalk. You didn't think much of it, considering it was second nature to you. However, the fact that it was second nature to you intrigued Helen. A random person wouldn't have such skills in their immediate possession, at least that's what she thinks.
You've never had much of a moral compass, but you're not a criminal either. Staying in the shadows, not drawing attention to yourself, but still being alert. Ever since the traumatic event of your parents' murders, you've used the grief to seek strength, revenge, and hone your anger in. You've never had to use your skills for much, until that fateful night. Helen just happened to be walking in the same direction when she saw this display. She was...astonished, for a lack of a better word.
"You okay, kid?" she calls out to you and walks closer. You just nod and snatched your stuff from the ground. Helen looks down at the mugger and smirks in slight disbelief. "You uh...got him pretty good."
Back to the pub, Helen is talking to you about the whole ordeal. "You and I both know that wasn't some coincidence. Y' got skills, kid. And you seem like..you're a bit jaded. Guarded for a reason, you know?" she takes a sip of whatever is in her glass "You look like you don't draw much attention to yourself, but you want community. Honestly, I think I have a proposition for you, if you care to listen."