The game was revealed at a Nintendo Direct Mini: Partner Showcase on October 28 and released on January 29, 2021 in Japan and August 20, 2021 in Korea and Taiwan.

The first part requires the player to choose two of the four main characters to form a pair of buddies that look for clues and interview citizens in a visual novel format.

The protagonist Luke Williams is a police officer who dreams of becoming a hero who and emulating his late father, a policeman who died in the line of duty.

However, he runs into "Phantom Thief Beast" Aaron, a man who is alleged to have caused several hundred billion dollars worth of public property damage.

[3] According to Mei Erikawa of Ruby Party, doing BMB was a challenge since most of the staff did not have experience in creating a game that can cater to male gamers.