Hi Pin, it's nice to have you here with us. Make yourself at home and always feel free to ask questions...there are a lot of helpful, knowledgeable members here ready to help you.
Welcome to BYC! We hope you enjoy your stay. There are many helpful articles and threads here that can get you started on raising chickens! If you have any questions, be sure to ask them. We're here to help.
Welcome. I cannot stress enough emphasis on what @DobieLover says about the coop. I would only add that if you cannot build, convert a shed. All you have to do is add roosting bars, a hardware cloth apron, and improve ventilation.