We had a farewell lunch with Dr. Joonhyuk Lee in a nice sushi house. Joonhyuk pursued his Ph.D. in my lab from 2014, in which I started to work in PNU. He involved most projects in the lab. Now it is time to spread his wings. So, he will start his new career in KRICT. Hope he is doing well. Now, he is not only the lab ALUMNI but also LIFETIME MEMBER of CMPL. Adios & Welcome!