There was a Japantown in San Francisco, but after the internment camps that locked up all the Japanese, Japantown shrunk down to just a couple tourist blocks.

world is a drama, we are the actors with our play role

What about San Francisco?"
"What about it?"
"Did you like it?"
She shrugged. "It was O.K."
"Just O.K.?"
She laughed. "Good God!"
"What?"
"You're all alike here."
"How so?" he asked.
"You demand adoration for the place. You're not happy until everybody swears undying love for every nook and cranny of every precious damn --"
"Whoa, missy."
"Well, it's true. Can't you just worship it on your own? Do I have to sign an affadavit?"
He chuckled. "We're that bad, are we?"
"You bet your ass you are.

Katana is a trained, disciplined martial artist. She removes herself from Birds of Prey to go on a personal journey in Japantown, San Francisco, and pursue a quest for vengeance against the Sword Clan, the men that killed her husband.

I've got more chins than a San Francisco phonebook.

San Francisco is gone. Nothing remains of it but memories.