Ran-Mao

Lau's adopted younger sister.

A beautiful girl with an expressionless face, dressed in a short cheongsam. She is very reticent, hardly ever speaking unless prompted by Lau, and even then, in broken sentences. Although she is said to be Lau's adopted sister, the nature of their relationship is unclear, but she is always by his side like a pet cat. She possesses considerable physical abilities and uses weights as weapons to guard Lau or faithfully execute his orders of purging.

In the "Blue Cult Arc," she infiltrates a noble's mansion in North Yorkshire as a maid alongside Mey-Rin.