The four-member rookie Z-generation girl group Rocking Doll gave off an unrivaled romantic mood.

Rocking Doll (Roa, Juri, Ahri, and Rena) released an additional group image and group teaser video of the second single, "Heart Rider," on their official SNS at noon on February 7th.

The released teaser shows an "alien fairy" Rocking Doll showing off their proud and lovely charm against the backdrop of a pink planet sitting down in the middle of the day. The Rocking Doll caught the eye by presenting some of its energetic performances for the first time on top of the melody that feels excitement and freshness.

In particular, the lovely yet disciplined group dance and cute video effects were added to further enhance the charm of the Rocking Doll. The Rocking Doll heralded a completely different twist from the previous album and a new transformation with its bouncy healing charm.