During the second year, I had different upperclassmen courses that expanded my knowledge and it reminds me the theories that I had learned in my lower courses. For example, Organic chemistry course was a different topic when we compare to General chemistry. Organic chemistry helped me think deeply in terms of chemistry and learned application in our daily lives. In terms of volunteering and other opportunities, I am volunteer at Asian Health Initiative Free Clinic. This place helped me develop my future career since the experience that I learned was totally related to my career. Also, working in the hospital developed my interest in terms of my science field. In addition, I will do volunteer job in South Korea and am going to apply the experience and skills that I had learned during my second year. Also, I am going to have an experience of shadowing for dentistry field.