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"Mirai (Ashita)" is the second Japanese single released by BTOB. It was released in four versions: a limited CD+DVD edition that came with a photo booklet and three regular CD only editions, each with a different B-side.
The single debuted and peaked at number 2 on the Oricon Singles Chart for the week ending March 29, 2015.[1] In its second week, the single fell to number 34 before dropping from the Top 50.[2] The single was the 80th best-selling single in 2015.[3]