[note 1] The EP was released on May 7, 2024, under Doh's newly established agency Company SooSoo and it was distributed by Dreamus.

This release marks the singer's first comeback after departing SM Entertainment after 11 years with the agency.

According to South Korean music data provider Circle Chart, the EP sold over 120,000 copies within its first week of its release.

[4] Doh returned to Exo for their seventh Korean-language album Exist that was released on July 10, 2023.

[10] On April 8, Company SooSoo announced through that Doh will release his third mini album titled Blossom on May 7 with "Mars" as the lead single and that pre-order for the EP would commence starting this day.

[17] The EP opens with the lead single "Mars" which is described as a medium-tempo pop song with whimsical lyrics narrating the story of two lovers with different personalities with minimalist music arrangement.

[1] Debahsree Dutta of Rolling Stone India gave the song a positive review, calling it "pleasant and relatable".

[22][23] Doh embarked on his first solo Asia fan meet tour "Bloom" to promote the EP from June 8 until August 31.