Mey-Rin's a determined, strong-willed individual who seeks to prove her worth. Like the other Phantomhive servants, she's fiercely loyal to Ciel and deeply respects Sebastian, whom she has a crush on because of his appreciation of who she is and her skills as a sniper. Sebastian was also the one who taught her how to read. Upon working for Ciel, she is allowed to wear skirts, which pleases her, and she is given glasses, which she cherishes and refuses to replace with new ones. She tends to remove said glasses whenever she assumes her role as a sniper so that she can focus on great distances. Mey-Rin, although clumsy and ungainly as a maid, remains an invaluable servant, for she is an exceptional sniper who guards Phantomhive Manor at night and dispatches enemies. She can discern far into the distance and aim and shoot with impeccable precision. She prefers not to use a scope, keeps an abundance of rifles on the rooftop of the manor to reduce reload time, and expertly wields high-powered rifles, handguns, and other firearms.She's of Chinese descent. Mey-Rin and her parents came to England on a tea clipper. However, some time afterward, her parents died in an epidemic and Mey-Rin was left to live in the streets of a foreign country. She eventually met Jan and Hao, to whom she introduced herself as "Rin." They created a stealing technique based on Mey-Rin's special eyesight: While the boys distracted rich-looking women, she shot down one of their earrings. Hao and Jan quickly grabbed it and they went to sell it for food. Their method proved to be quite effective and everything went well until they decided to rob a woman in front of the Royal Opera House in 1877: The woman got hurt from Mey-Rin's shot and her enraged husband ordered his subordinate Haku to go after Jan and Hao, who'd run away with the woman's earring. While Mey-Rin waited for Jan and Hao on the rooftop, her friends were caught by Haku, and when he threatened to sell their livers on the black market, they told him about Mey-Rin. Shortly afterward, Jan, Hao, Haku, and his companions went to Mey-Rin. One of the men dangled Jan and Hao from the roof while Haku gave Mey-Rin two choices: If she shot off an earring from an Opera House attendee, she would be spared. If she didn't, she and her friends would be tossed off the roof. Mey-Rin complied and shot off one of the attendees' earrings - much to Haku's amazement. However, he'd only promised to spare her, and his companion threw Hao and Jan off the roof. Still shocked and crying, Mey-Rin was taken into Qīng Bāng as their "brother." She was trained to use firearms, and a while after becoming a member of Qīng Bāng, was assigned to her first mission: to assassinate Yang, a top official of their rivals Gelaohui. Ten years later, in 1887, Mey-Rin was still operating as an assassin for Qīng Bāng under the nickname "Owl" when Haku gave her the task to hunt down and kill the Queen's Watchdog, Ciel Phantomhive. Mey-Rin headed to Phantomhive Manor; she studied it, its surroundings, and inhabitants and waited until she got the perfect chance to shoot Ciel. However, when the time came, she missed and had to retreat and rethink. Mey-Rin didn't get far enough though as she was caught by Sebastian running after her at inhuman speed. At the same time, Sebastian approached her, Mey-Rin's associate Dove attempted to silence her but was promptly taken down by Sebastian. Mey-Rin was then disarmed and brought to the manor. She was presented to Ciel and Sebastian suggested to hire her as a maid, as they were short on staff and her special eye-sight would be very beneficial to them. Mey-Rin couldn't imagine herself working as a maid and refused. Still, Ciel invited her to eat with him, and upon tasting the warm bread and stew, Mey-Rin broke down and stuffed herself.