Microblading is a tattooing technique in which a small handheld tool made of several tiny needles is used to add semi-permanent pigment to the skin. Microblading differs from standard eyebrow tattooing because each hairstroke is created by hand using a blade which creates fine slices in the skin, whereas eyebrow tattoos are done with a machine and single needle. Microblading is typically used on eyebrows to create, enhance or reshape their appearance in terms of both shape and color.
If you definitely know that this female will use your beauty services in sinful way, then you should not help her in doing wrong. If you do not know that and they do wrong later on, you will not be responsible of their sinful acts.