Se7en released a photo of his musical rehearsal.

On June 5, Se7en released a photo himself at the musical Elsabeth's rehearsal with the comment, "'Elisabeth' orchestra practice. 7TOD D-9, coming soon!"

In the musical, Se7en will play the character of Der Tod, the fantasy character of death. This will be Se7en's first comeback performance since his discharge from the military. Se7en expressed his mixed feelings by revealing, "This will be my first musical performance, so I'm very nervous and excited. I'll show the audience the most dynamic death character."

Elisabeth featuring Se7en will be performed from June 13 to September 6 at Blue Square Samsung Electronics Hall in Seoul.