In what year was the album “アンセム / マンマミーア! - Single” released by DOBERMAN INFINITY?

In what year was the album “アンセム / マンマミーア! - Single” released by DOBERMAN INFINITY?: The album “アンセム / マンマミーア! - Single” was released in 2023 by DOBERMAN INFINITY, featuring 3 tracks.
What is the most successful song from the album “アンセム / マンマミーア! - Single” by DOBERMAN INFINITY?: “アンセム” is the biggest hit from the album “アンセム / マンマミーア! - Single” by DOBERMAN INFINITY.

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