After saving the world, the boys of P1Harmony decided to conquer the streets in their latest batch of comeback photos. 

The boy group's upcoming 7th mini album 'Sad Song' tells the story of six heroes who saved the world, and as a result, suffer from loneliness with no cause to fight for. The mini album's title track "Sad Song" features a fusion of Latin rhythms with hip-hop, boasting P1Harmony's eclectic energy. 

In addition to "Sad Song", P1Harmony's 7th mini album contains 5 other b-sides as well as the English version of "Sad Song". The album will be out worldwide on September 20 at 1 PM KST / 12 AM ET. 

While you wait, check out P1Harmony's latest batch of comeback teasers, below.

SEE ALSO: P1Harmony elevate their charisma in powerful 'SAD SONG' MV teaser