Mika was discovered at an am/pm by porn director Jack Pearl. Initially she tried to work only with her former husband but began working with other males in the industry to pursue her adult film career. Mika stated in an interview, "He was just too jealous and couldn't handle me working with other men". She quit to work on her marriage. His inability to forget about her working with other men put a strain on their relationship and they divorced. Mika also had a third trimester miscarriage in this period, which she described as the worst time of her life.

Among her sex film aficionados, she is known for her intense and loud orgasms on screen, and is noted for her work ethic and professionalism on set. She works with both men and women of various races in her films, always displaying a voraciousness and enthusiasm matched by few.

Tan has married twice: First to Ray Shannon and then to Alec Knight (another worker in the adult industry). She has been romantically connected with fellow adult industry workers.

As with many other seasoned adult video performers, she has moved into production, with her debut film featuring heterosexual Asian-American men in hardcore scenes. She is currently semi-retired, managing four shoot locations, working as a certified makeup artist, studying film editing & post-production marketing, and working as an independent consultant preparing random, time-coded quality control reports for the largest adult DVD distribution company in the Valley, ensuring their fetish films do not contain scenes depicting non-consensual penetration while bound (rape scenarios), abduction, or other acts which may be considered obscene or illegal for US standards.