Moon Bin thought his life would be much easier if he just forgets about the past and move on. But it seems like the past chase after him, like a mission given from above. And things get complicated as everyone finds out.

Six boys is the ace of all detectives but everything changes until level A cases was given to them. As they go through the cases, they made a bond that no one can ever break. Join Fantagious Boys Investigative Team in their hardships and missions throughout their adventure.