Story of two college boys who own amateur detective club who had no achievement before. The club is in verge of disbandment because it had no achievement at all. As a warning, the club won't be disbanded if they can crack just one case. The member are Roy, a delinquent who never had a clean sheet and Don, a mystery-enthusiast who is good at observation. But due some special condition, Don only able to work three hours in a day and in motivation-state. They together will try to crack one case to save their club but they didn't know that the case will lead to much bigger case that can reveal their past and their future..