Idol vocal group Heart B released a teaser image, entering the countdown of their comeback.

On Monday, Heart B's agency Marble Pop Entertainment released the teaser image of member Dojin.

In the teaser image, Dojin is making a meaningful look at the camera. The black and white effect of the picture added onto the mysteriousness of the image.

The image also says, "Heart B 201504," announcing their comeback to be within this month.

Heart B has not been revealing anything but their music to focus solely on music, but still was able to enter the top of music charts, proving their musical talents.

One representative said, "Many are curious of Heart B's members so we are planning to reveal them one by one in April. They are working hard in order to bring a great album to their fans so please be on the lookout."