The Butler, In a Foreign Land is Chapter 158 of the Kuroshitsuji manga.
Mey-Rin shoots down the earring from a lady in front of the Royal Opera House. Jan takes it, and he and Hao run away happily, wondering how much money it will bring them. Unfortunately, when she shot down her earring, Mey-Rin hurt the lady which causes her enraged husband to instruct his bespectacled subordinate Haku to catch and punish Jan and Hao.
Jan and Hao are quickly caught. Backed into a corner by Haku and two other men, Jan offers to return the earring and apologizes for the theft. However, Haku yells at them that they will not be let go with a simple apology as they have hurt their boss' lady. When Haku ponders about selling Hao's and Jan's livers as medicine, Jan tells him that they have not hurt the lady, but that it was someone else from a rooftop.
They go to the rooftop where Mey-Rin is waiting for her friends. Mey-Rin asks Haku and his companions who they are. Haku says that he is a friend of Jan's before he tells one of his companions to dangle Jan and Hao from the roof. Then, he gives Mey-Rin two choices: Either she shoots off an earring from one of the Opera House attendees to get spared, or she and her friends will be thrown off the roof.
Mey-Rin decides to shoot down an earring off one of the attendees. She takes special care not to miss and rejoices when she strikes. Haku is amazed and as promised he spares her but only her, and Jan and Hao are thrown off the rooftop by his companion.
Afterward, Haku tells a horrified, crying Mey-Rin that the boys sold her out and that she will be their "brother" from now on.