This is a very traditional Korean birthday dinner with seaweed soup, tofu, rice, kimchi, and more. It's actually very good. By the way, my birthday was September 25, 2005 and I turned 18 in the US. I'm now legally an adult there. But I'm not an adult in Korea yet. My Korean age is 19 and I turn 20 on January 1. Everyone born the same year is the same age, and you are one year old on your birthday.