c. 89 BCE
Fen was a Chinese Assassin operating in the fortress of Rong Hsu. She and her twin, Jing, worked alongside their brother Guiying. Their task was to train new Assassins in the skills of fihgting and stealth. Jing went under the pseudonym The Cricket, which she obtained after eliminating a group of mercenaries that were sent by the Templars to kill Rong Hsu.
Little is known of Fen's origins; at some point, however, she joined a social club in Shanghai. Here she became known with people who was a part of a secret society. Fen and Jing were transported to a fortress in the jungle. Here they met with the governess: Rong Hsu.
After serving the Brotherhood for two years, Fen and Jing decided to help their brother – who had fallen from his high horse, and now lived only for alcohol. The twins contacted Guiying and brought him to the fortress – saving him from drowning in his love for the drinks.
When Rong Hsu traveled to Egypt for obtaining an orb from The Sicilian, Jing and her siblings were tasked to train the remaining Assassins and mercenaries even harder than before.
A few weeks prior to Rong Hsu's arrival, the fortress were attacked by some sneaky assassins. Fen thought it was some kind of turncoats, but it seemed to be very skilled Templars. When one of them was going to execute her brother, Guiying was awaken and threw the attacker away. Fen and Jing were awoken also, and they attacked her. The rest of the camp's Assassins had been murdered – in the courtyard at least. The agressor awaited for the attack. It didn't take long before Fen ran towards the agressor – but were quickly killed by her, slicing Fen's chest in two. "Your turn, commander Guiying," the woman said. After a hort fight, she eliminated Fen's twin and brother.