UPDATED: The online event will be held on June 12th (Sat), but the time hasn’t announced yet.
Original source: https://www.universal-music.co.jp/jang-keunsuk/news/2021-04-09/
If you buy the first limited production (the first limited production A/ B/ C, the regular edition, or JKS Japan fan club limited edition) of Jang Keun Suk’s new single ‘Emotion’, you’ll get a serial number for a lottery enclosed in the CD. Finally the details were announced. Please check the details below. You may be one of the lucky 390 winners!