who is marin?

Marin - A young woman from Puerto Rico who lives with her cousin’s family. Marin spends most of her time baby-sitting and so cannot leave the house. She sells makeup for Avon and teaches Esperanza and her friends about the world of boys. Although she has a fiancé back in Puerto Rico, she also dreams about American men taking her away from Mango Street to the suburbs. At the end of the year, her cousins send her back to Puerto Rico.