Seonghwa

The song "THANK U" was written by Hongjoong to express his gratitude towards Seonghwa.

Seonghwa's current favorite song is "Nerves" by DPR IAN.

Seonghwa's possible stage name was "Mars". Hongjoong was the one who thought of it because "Seonghwa" reversed is "Hwaseong", which means "Mars" in English.

In their previous dorms, Seonghwa and Hongjoong were roommates.

Seonghwa made his runway debut at the Isabel Marant Fashion Week Show.