OVA
Description
Mey-Rin serves as a maid in the Phantomhive household, her maroon-red hair fastened in high pigtails and thick round glasses—gifted by her master—perched on her nose. These lenses correct severe nearsightedness, yet her unmatched long-distance vision allows her to operate as a lethal sniper without a scope. Scarred arms hint at her history as a child assassin.

Born to Chinese immigrants who perished in an English epidemic, she survived as a street thief, partnering with orphans Jan and Hao. Her precision with a rifle enabled their thefts, shooting earrings off affluent women for the boys to seize. A botched robbery led to their capture by the Qīng Bāng syndicate, which executed her friends and molded her into "Owl," an assassin tasked with killing Ciel Phantomhive in 1887. Her failed attempt resulted in capture by Sebastian Michaelis, who, impressed by her skills, repurposed her as a maid.

Reluctant to domestic life, Mey-Rin softened after Ciel permitted her skirts and provided her glasses. Though clumsiness plagues her chores—exacerbated by poor vision and anxiety—her loyalty to the Phantomhives is unshakable, rooted in gratitude for their acceptance and Sebastian’s validation of her talents.

By night, she patrols the manor’s rooftops, deploying high-caliber rifles and pre-positioned weapons for rapid defense. This combat prowess starkly contrasts her daytime timidity and bashful admiration for Sebastian, embodying her conflict between a bloodstained past and yearning for ordinary life.

Once disguising herself as a boy for survival, she now embraces femininity, her glasses serving as both a token of Ciel’s trust and a symbol of atonement. Across arcs like Black Butler and Red Butler, she offsets the staff’s domestic blunders with battlefield efficiency, collaborating to safeguard the estate. Later missions, such as covert operations in the Public School Arc, draw on her assassin training, occasionally reigniting tensions between her former identity and current allegiance. While minimally involved in the Phantomhive Manor Murders, her enduring traits—clumsy charm, unwavering devotion, and peerless marksmanship—cement her dual role as humorous subordinate and indispensable guardian.