A notorious grave robber Dae-chool, recently stole a precious Buddha statue. However, two kids Ji-min and Byung-oh steal it from him for fun. Dae-Chool tricks the kids telling them that he is a special agent from the Ministry of National Treasures, and persuades the kids to help him "in the cause of justice". As they experience one mishap after another, the kids and Dae-chool form a family-like relationship.
| Actor | Role |
|---|---|
 Jung Jae-youngDae-chul | Dae-chul |
 Jang Seo-heeAe-ran | Ae-ran |
 Nam Ji-hyunPark Ji-min | Park Ji-min |
| KKim Su-hoByeong-oh | Byeong-oh |
 Lee Do-gyeongHal-bae | Hal-bae |
 Hong Seok-yeonChoenmachong Manager | Choenmachong Manager |
 Lee Hee-doMember of Cultural Heritage | Member of Cultural Heritage |
 Lee Ki-youngDetective | Detective |
 Son Byung-wookKang-goo | Kang-goo |
 Park Sang-gyuManager | Manager |
 Im Cheol-hyungDoctor | Doctor |
 Kim Jae-manTeacher | Teacher |
 Kim Jin-manRescue Captain | Rescue Captain |
| YYang Joong-kyeongAmbassador | Ambassador |
| SSin Joon-beomKang-goo's minion | Kang-goo's minion |
 Lee Young-sukDog trader | Dog trader |
 Lee Jeong-wooGwang-hyun | Gwang-hyun |
 Im Hyeong-taeAntique shop owner | Antique shop owner |
| Hong Seok-yeonOfficial | Official |