Le Ciel.

Le Ciel (르씨엘), also stylized as Leciel, was a South Korean band duo managed by Vandemn Tiger, featuring Moon Xion and Kang Jiwook. Another profile detail is that The band was first teased in August 2017, and was originally scheduled to debut as a four-member band in September with the single “Thank You So Much”. Additional background says that However, the debut was postponed to October and eventually cancelled due to internal restructuring. The band finally debuted as a duo on March 26, 2023, through the digital single “Sweetune”. Another profile detail is that Le Ciel centered around the two core members, supported by session musicians, with actor Jang Donggun serving as the band’s primary session drummer. Additional background says that The band quietly disbanded sometime after the conclusion of their debut promotions.