In what year was the album “The Only” released by 더보이즈(THE BOYZ)?

In what year was the album “The Only” released by 더보이즈(THE BOYZ)?: The album “The Only” was released in 2018 by 더보이즈(THE BOYZ), featuring 6 tracks.
What is the most successful song from the album “The Only” by 더보이즈(THE BOYZ)?: “No Air” is the biggest hit from the album “The Only” by 더보이즈(THE BOYZ).

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