BOL4 has begun to warm up its full-pledged comeback by unveiling a moving teaser for its new mini-album "Two Five."

On Sept. 4, BOL4 unveiled its " Workaholic " and "25" moving to show charm through its official SNS.

First of all, Ahn Ji-young's chic and urban charm gave the "25" moving teaser an beauty, while Yoo Ji-Yoon's languid yet cool girl crush charm caught attention in the " Workaholic " moving teaser.

As the new song "Two Five" was first released through a moving teaser, public attention has been focused, and expectations are rising as the day goes by for the band's new musical growth, which is totally different from before.

Meanwhile, BOL4's new mini-album "Two Five" will be released on various online music sites at 6 p.m. on Sept. 10.