I joined Prof. Hyung Mok Lee's group in the Department of Physics and Astronomy at Seoul National University (SNU) in July 2022, and it's already time to say goodbye. I will be leaving my current position on November 5, 2023.

First and foremost, I would like to express my heartfelt gratitude to Prof. Hyung Mok Lee for his exceptional kindness and generosity throughout my stay. I had numerous opportunities to collaborate with groups and participate in meetings all around the world.

I also want to extend my thanks to all my colleagues in the gravitational wave group at SNU and at the Center for the GW Universe. It has been a wonderful journey living in Korea, and I hope to return in the near future as a visitor. Thank you for making my time at SNU so memorable.