Group Rainbow released their comeback teaser photo and showed off their cute image.

Today, the posted their teaser photo on Naver Music. This photo was for their first album, Rainbow Syndrome-Part 2. This photo revealed the group for their title song, "Sunshine."

In the picture, the girls are wearing orange work outfits and is making a mess with paints and water guns. Although they are fooling around, they still show off their cute and lovely image.

They will also release another concept photo on May 30 and release the teaser video on May 31.

They will make their official comeback on June 4.